Abrégé

The present invention pertains to: a dental milling blank formed from a laminate, wherein the laminate includes at least two layers of a layer (U) containing a thermoplastic resin (A) and a layer (L) containing a thermoplastic resin (B), the thermoplastic resin (A) is at least one type of substance selected from the group consisting of acrylics, polycarbonates, polyesters, polyurethane, polyamides, polyarylates, polysulfones, polyethersulfones, and polycyclo-olefin, and the thermoplastic resin (B) is at least one type of substance selected from the group consisting of polyether ketones, polyether ether ketones, polyether ketone ketones, polyacetals, polyphenylene ethers, polyphenylene sulfides, and polyimides; a method for producing the dental milling blank, the method including specific steps; and a method for producing a dental prosthesis, the method including a step for cutting the dental milling blank.

Classes IPC  ?

• A61K 6/891 - Composés obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61C 13/14 - Dispositifs pour le durcissement des prothèses en matière plastique
• A61C 13/087 - Dents en résine artificielle
• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61K 6/893 - Polyuréthanes

Abrégé

The present invention relates to: a dental resin composition which contains a polycarbonate (A) that comprises a carbonate unit (I) represented by formula (I), and an inorganic particulate filler (B), wherein the inorganic particulate filler (B) has an average primary particle diameter of 2.5 µm or less and an aspect ratio of 1 or more and less than 10; a method for producing the dental resin composition; and a dental molded body which contains the dental resin composition and a method for producing the dental molded body.

Classes IPC  ?

• A61K 6/891 - Composés obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61C 13/14 - Dispositifs pour le durcissement des prothèses en matière plastique
• A61C 13/087 - Dents en résine artificielle
• A61K 6/16 - Indice de réfraction
• A61K 6/17 - Taille des particules
• A61K 6/35 - Préparations pour la stabilisation de prothèses dentaires dans la bouche
• A61K 6/70 - Préparations pour la technique dentaire comprenant des additifs inorganiques
• A61K 6/77 - Verre
• A61K 6/84 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des métaux ou des alliages
• A61K 6/836 - Verre

Abrégé

The present invention provides a dental workpiece that exhibits excellent machinability in a sintered state while possessing suitable strength for dental use. The present invention relates to a dental workpiece that exhibits an erosion rate of 8.0 μm/g or more, or a product of erosion rate (μm/g)×average crystal grain size (μm) greater than or equal to 15 μm2/g when a spherical alumina slurry with an average particle diameter of 3.0 μm is projected in a micro slurry-jet erosion test, and that has a biaxial flexural strength of 300 MPa or more as measured in compliance with ISO 6872:2015.

Classes IPC  ?

• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium

Abrégé

The present invention provides: a zirconia composition from which it is possible to obtain, after being sintered for a short period of time in which the holding time at the maximum sintering temperature is 10 minutes or less, a zirconia sintered body that can maintain excellent translucency comparable to that achieved after being sintered for a long period of time, and to obtain a zirconia calcined body that has excellent machinability and that can reduce the probability of chipping being generated during machining; a zirconia calcined body; and a method for producing the same. The present invention pertains to a zirconia composition which comprises a zirconia powder and a powder of a stabilizer capable of suppressing phase transition of zirconia, and in which the zirconia powder has the stabilizer existing in the state of a solid solution in zirconia, and the percentage content of the stabilizer existing in the state of a solid solution in zirconia in the zirconia powder is 0.1-2.7 mol% with respect to the total mol of the zirconia and the stabilizer.

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• C01G 25/02 - Oxydes

Abrégé

The present invention provides: a zirconia composition from which it is possible to obtain, after being sintered for a short period of time in which the holding time at the maximum sintering temperature is 10 minutes or less, a zirconia sintered body that can maintain high translucency comparable to that achieved after being sintered for a long period of time, and to obtain a zirconia calcined body that has excellent machinability and that can reduce the probability of chipping being generated during machining; a zirconia calcined body; and a method for producing the same. The present invention pertains to a zirconia composition which comprises a cubic-crystal zirconia powder containing a stabilizer capable of suppressing phase transition of zirconia, and in which the zirconia powder includes two or more types of zirconia powders containing the stabilizer at different ratios.

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• C01G 25/02 - Oxydes

Abrégé

The present invention provides a zirconia composite sintered body that exhibits excellent machinability in its sintered state while displaying a black color. The present invention relates to a black zirconia composite sintered body comprising ZrO2, HfO2, a stabilizer capable of preventing a phase transformation of zirconia, and Nb2O5 and/or Ta2O5, wherein the total content of ZrO2 and HfO2 is 78 to 97.5 mol %, the content of the stabilizer is 1 to 12 mol %, and the total content of Nb2O5 and Ta2O5 is 1 to 9 mol % in total 100 mol % of ZrO2, HfO2, the stabilizer, Nb2O5, and Ta2O5, and the black zirconia composite sintered body further comprises elements or ions derived from a capping agent.

Classes IPC  ?

• C04B 35/49 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates contenant également de l'oxyde de titane ou des titanates
• C04B 35/645 - Frittage sous pression

Abrégé

The present invention provides a zirconia composite sintered body that exhibits excellent machinability while possessing strength and translucency suited for dental use. The present invention relates to a zirconia composite sintered body comprising ZrO2, HfO2, a stabilizer capable of preventing a phase transformation of zirconia, and Nb2O5 and/or Ta2O5, wherein the total content of ZrO2 and HfO2 is 78 to 97.5 mol %, the content of the stabilizer is 1 to 12 mol %, and the total content of Nb2O5 and Ta2O5 is 1 to 9 mol % in total 100 mol % of ZrO2, HfO2, the stabilizer, Nb2O5, and Ta2O5, and the zirconia composite sintered body further comprises a Group I element.

Classes IPC  ?

• C04B 35/49 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates contenant également de l'oxyde de titane ou des titanates

Abrégé

The present invention provides a zirconia composite sintered body that exhibits excellent machinability while possessing strength and translucency suited for dental use. The present invention relates to a zirconia composite sintered body comprising ZrO2, HfO2, a stabilizer capable of preventing a phase transformation of zirconia, and Nb2O5 and/or Ta2O5, wherein the total content of ZrO2 and HfO2 is 78 to 97.5 mol %, the content of the stabilizer is 1 to 12 mol %, and the total content of Nb2O5 and Ta2O5 is 1 to 9 mol % in total 100 mol % of ZrO2, HfO2, the stabilizer, Nb2O5, and Ta2O5, and the zirconia composite sintered body further comprises a Group I element, and TiO2.

Classes IPC  ?

• C04B 35/488 - Composites
• C04B 35/645 - Frittage sous pression

Abrégé

A dental end mill for processing a workpiece includes a shank portion held by a dental processing machine; a neck lower portion including a cutting edge; and a neck portion that is configured to connect the shank portion and the neck lower portion. The neck lower portion is formed of polycrystalline diamond.

Classes IPC  ?

• B23C 5/10 - Fraise à queue, c.-à-d. comportant une queue incorporée
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication

Abrégé

The present invention provides a method for producing a ceramic calcined body capable of shortening the time until the end of calcination at a high temperature increase rate and suppressing the occurrence of defects. The present invention pertains to a method for producing a ceramic calcined body, the method including a heat treatment step for heating a ceramic molded body, wherein the heat treatment step includes a first heat treatment step and, if necessary, a second heat treatment step, wherein at least one of the first heat treatment step and the second heat treatment step includes a step for heating the ceramic molded body under an atmosphere having an oxygen partial pressure of 0.11 atm or less, and wherein the molded body contains an organic material. The first heat treatment step is a heat treatment step under an atmosphere having an oxygen partial pressure of 0.11 atm or less, and the temperature increase rate in the first heat treatment step is preferably 2.0°C/min or more.

Classes IPC  ?

• C04B 35/488 - Composites
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• C04B 35/64 - Procédés de cuisson ou de frittage
• C04B 35/634 - Polymères

Abrégé

The present invention provides a method for producing a ceramic calcined body with which it is possible to shorten the time until the end of calcination by a high heating rate and suppress the occurrence of defects. The present invention pertains to a method for producing a ceramic calcined body, the method including a heat treatment step for heating a ceramic molded body. The heat treatment step includes a first heat treatment step and a second heat treatment step. In at least one of the first heat treatment step and the second heat treatment step, the ratio (heating rate/oxygen partial pressure) of the heating rate to the oxygen partial pressure is from 7°C/(atm∙min) to less than 500,000° C/(atm∙min), and the molded body contains an organic material. The first heat treatment step is a heat treatment step in an atmosphere having an oxygen partial pressure of 0.11 atm or less, and the heating rate in the first heat treatment step is preferably 2.0°C/min or more.

Classes IPC  ?

• C04B 35/488 - Composites
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• C04B 35/64 - Procédés de cuisson ou de frittage
• C04B 35/634 - Polymères

Abrégé

In order to provide a paste injector capable of preventing leakage of paste from between a syringe and an attachment member, a paste injector (1) comprising a syringe (3) and an attachment member (M) is provided with: an outer body (OM) with which the attachment member (M) is fixed to one end of the syringe (3) by means of an engaging part (45) and an engaged part (107); an inner member (IM) which is provided inside the outer body (OM) and to which an insertion part (89, 89') to be inserted into a discharge opening (51, 51') of the syringe (3) is formed; and a biasing member (EM) sandwiched between the outer body (OM) and the inner member (IM). When the attachment member (M) is fixed to one end of the syringe (3), the biasing member (EM) is compressed between the outer body (OM) and the inner member (IM) to bias the inner member (IM) against the syringe (3).

Classes IPC  ?

• A61C 5/64 - Applicateurs, p. ex. seringues ou pistolets pour compositions à composants multiples

Abrégé

The present invention provides a dental ceramic coloring liquid with which a decrease in the mechanical strength of a dental ceramic after sintering can be reduced, and that can impart masking properties while having good preservation stability. The present invention relates to a dental ceramic coloring liquid comprising an organosilicon compound. The organosilicon compound is preferably hydrophilic. The organosilicon compound is preferably a silicone compound. The organosilicon compound is preferably an alkylsilane compound.

Classes IPC  ?

• A61K 6/896 - Composés polyorganosiliciés
• A61K 6/65 - Colorants
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium

Abrégé

The present invention provides a self-adhesive dental composite resin that can achieve both favorable cavity sealing properties and good shade conformity when used for cavities in wedge-shaped defects. The present invention relates to a self-adhesive dental composite resin comprising a monomer (a) having an acidic group, a monomer (b) having no acidic group, a polymerization initiator (c), and a filler (d), wherein the self-adhesive dental composite resin has a polymerization shrinkage stress of less than 10.0 MPa, and the degree of light diffusion D as indicated by the following formula [I] for the self-adhesive dental composite resin after curing is 0.10 or more and less than 3.00, The present invention provides a self-adhesive dental composite resin that can achieve both favorable cavity sealing properties and good shade conformity when used for cavities in wedge-shaped defects. The present invention relates to a self-adhesive dental composite resin comprising a monomer (a) having an acidic group, a monomer (b) having no acidic group, a polymerization initiator (c), and a filler (d), wherein the self-adhesive dental composite resin has a polymerization shrinkage stress of less than 10.0 MPa, and the degree of light diffusion D as indicated by the following formula [I] for the self-adhesive dental composite resin after curing is 0.10 or more and less than 3.00, D = ( I 20 / cos ⁢ 20 ⁢ ° + I 70 / cos ⁢ 70 ⁢ ° ) / ( 2 ⁢ I 0 ) . [ I ] (Description of the symbols in the formula is omitted.)

Classes IPC  ?

• A61K 6/16 - Indice de réfraction
• A61K 6/76 - Charges comprenant des composés contenant du silicium
• A61K 6/79 - Initiateurs
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

25255; and Cr.

Classes IPC  ?

• C04B 35/488 - Composites
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique

Abrégé

252525255, and a step for building up a porcelain material on the pretreated zirconia composite sintered body and performing firing.

Classes IPC  ?

• A61C 13/083 - Dents en porcelaine ou en céramique
• A61C 13/08 - Dents artificiellesFabrication de dents artificielles
• A61K 6/816 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de titane
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/822 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux des terres rares
• A61K 6/824 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux de transition
• C01G 25/00 - Composés du zirconium
• C01G 33/00 - Composés du niobium
• C04B 35/488 - Composites
• C04B 41/86 - GlaçuresGlaçures à froid

Abrégé

The present invention provides a dental composition which has excellent stability to ambient light under a high illuminance and has excellent photocurability. The present invention relates to a dental composition comprising an ultraviolet absorber (A), a polymerizable monomer (B), and a photopolymerization initiator (C), wherein the ultraviolet absorber (A) is a compound satisfying the following [I], [II], and [III]: [I] the compound has a triazine skeleton; [II] the compound dissolves in an amount of 0.12 parts by mass or more in 100 parts by mass of 2-hydroxyethyl methacrylate; and [III] when the ultraviolet absorber (A) is dissolved in ethyl acetate as a solvent to prepare a solution having a concentration of 3×10-5 mol/L and the solution is examined for maximum absorption wavelength with a spectrophotometer using a quartz cell having an optical path length of 10 mm and when the measurement is made over the wavelength range of 250-500 nm using a compound having an absorbance of 0.5 or greater, then the solution has a maximum absorption wavelength in the wavelength range of 310-400 nm.

Classes IPC  ?

• A61K 6/884 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des résines naturelles ou synthétiques

Abrégé

The present invention provides a dental curable composition that demonstrates favorable color compatibility with a wide range of natural tooth shades using a single formulation, even for Class II cavities about 4 mm deep, including those in molars with proximal surfaces. The present invention relates to a dental curable composition comprising a polymerizable monomer (A), a polymerization initiator (B), and a filler (C), wherein the dental curable composition shows a color difference ΔE* of 6.0 or less as calculated by the formula [1] below in both a central portion and a proximal portion of artificial molars of A1 and A4 shades when filled in bulk and cured in Class II cavities of 4.0 mm depth formed in the artificial molars. The present invention provides a dental curable composition that demonstrates favorable color compatibility with a wide range of natural tooth shades using a single formulation, even for Class II cavities about 4 mm deep, including those in molars with proximal surfaces. The present invention relates to a dental curable composition comprising a polymerizable monomer (A), a polymerization initiator (B), and a filler (C), wherein the dental curable composition shows a color difference ΔE* of 6.0 or less as calculated by the formula [1] below in both a central portion and a proximal portion of artificial molars of A1 and A4 shades when filled in bulk and cured in Class II cavities of 4.0 mm depth formed in the artificial molars. Δ ⁢ E * = ( ( L 1 * - L 0 * ) 2 + ( a 1 * - a 0 * ) 2 + ( b 1 * - b 0 * ) 2 ) 1 / 2 [ 1 ] The present invention provides a dental curable composition that demonstrates favorable color compatibility with a wide range of natural tooth shades using a single formulation, even for Class II cavities about 4 mm deep, including those in molars with proximal surfaces. The present invention relates to a dental curable composition comprising a polymerizable monomer (A), a polymerization initiator (B), and a filler (C), wherein the dental curable composition shows a color difference ΔE* of 6.0 or less as calculated by the formula [1] below in both a central portion and a proximal portion of artificial molars of A1 and A4 shades when filled in bulk and cured in Class II cavities of 4.0 mm depth formed in the artificial molars. Δ ⁢ E * = ( ( L 1 * - L 0 * ) 2 + ( a 1 * - a 0 * ) 2 + ( b 1 * - b 0 * ) 2 ) 1 / 2 [ 1 ] (Description of the symbols in the formula is omitted.)

Classes IPC  ?

• A61K 6/16 - Indice de réfraction
• A61K 6/17 - Taille des particules
• A61K 6/71 - Charges
• A61K 6/78 - Pigments
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

The present invention provides a two-component dental composition showing minimal color change and having excellent long-term color stability. The present invention relates to a two-component dental composition comprising an ultraviolet absorbent (A), a polymerizable monomer (B), a chemical polymerization initiator (C), and a chemical polymerization promoter (D). The ultraviolet absorbent (A) is a triazine-based ultraviolet absorbent having a maximum absorption wavelength in the wavelength range from 310 nm to 400 nm. The ultraviolet absorbent (A) is preferably a triazine-based ultraviolet absorbent represented by general formula (1).

Classes IPC  ?

• A61K 6/831 - Emploi d'éléments non métalliques ou de leurs composés, p. ex. de carbone
• A61K 6/836 - Verre
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

The present invention provides an adhesive composition for stereolithographic articles and non-stereolithographic articles, possessing excellent adhesive properties to both objects fabricated by stereolithography and molded articles made by methods other than stereolithography. The present invention relates to an adhesive composition for stereolithographic articles and non-stereolithographic articles, comprising: a polyfunctional (meth)acrylic polymerizable monomer (A); and an organic solvent (B) having a normal boiling point of 120° C. or less, and a viscosity at 25° C. of 10 mPa·s or less, wherein the polyfunctional (meth)acrylic polymerizable monomer (A) comprises two or more polymerizable groups per molecule, and at least one selected from the group consisting of a urethane bond, an aromatic skeleton, and an amide bond, and the polymerizable groups of the polyfunctional (meth)acrylic polymerizable monomer (A) are (meth)acryloxy groups or (meth)acrylamide groups.

Classes IPC  ?

• C09J 175/06 - Polyuréthanes à partir de polyesters
• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• C09J 177/12 - Polyesteramides

Abrégé

Provided is a dental composition from which there can be obtained a cured product having a large photocurable depth, high mechanical strength, low polymerization shrinkage stress, and high surface hardness. The dental composition comprises a monomer (A), a polymerization initiator (B), and a filler (C). The monomer (A) comprises a monomer (A-1) represented by formula (1) and a monomer (A-2) which is other than the monomer (A-1). The filler (C) is included at 50-90 mass% in 100 mass% of the dental composition. [The symbols in formula (1) are as defined in the description of the present application.]

Classes IPC  ?

• A61K 6/891 - Composés obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61K 6/833 - Composites verre-céramique

Abrégé

The present invention provides a dental curable composition that excels in qualities such as working time margin, and bond strength to dentin. The present invention relates to a dental curable composition comprising a polymerizable monomer (A) having an acidic group, a polymerizable monomer (B) having no acidic group, a chemical polymerization initiator (C), a polymerization accelerator (D), a transition metal compound (E), and a ligand compound (F), wherein the ligand compound (F) is at least one compound selected from the group consisting of a ligand containing a phosphorus atom, and a ligand containing a nitrogen atom.

Classes IPC  ?

• A61K 6/838 - Composés du phosphore, p. ex. apatite
• A61K 6/61 - Initiateurs cationiques, anioniques ou redox
• A61K 6/884 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des résines naturelles ou synthétiques

Abrégé

The present invention provides a pre-sintered body of oxide ceramics that possesses excellent polishability and exhibits aesthetics due to high evenness on both the polished surface of the pre-sintered body and the surface of the sintered body after sintering. The invention also provides a method for producing such oxide ceramic pre-sintered bodies. The present invention relates to an oxide ceramic pre-sintered body for dental use comprising oxide ceramic particles with an average roundness of primary particles of 0.81 or more and having a relative density of 43 to 63%.

Classes IPC  ?

• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• C04B 35/119 - Composites avec de l'oxyde de zirconium
• C04B 35/488 - Composites
• C04B 35/63 - Préparation ou traitement des poudres individuellement ou par fournées utilisant des additifs spécialement adaptés à la formation des produits
• C04B 35/645 - Frittage sous pression

Abrégé

mm282830m283030 represents the area intensity of a peak around 2θ = 30° where a tetragonal or cubic main peak appears in XRD measurement).

Classes IPC  ?

• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• A61K 6/824 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux de transition
• C04B 35/486 - Céramiques fines

Abrégé

The present invention provides a dental glass composition that exhibits excellent fixability to dental prostheses, and does not require fixation firing, in addition to reducing notable bubble formation and interface delamination at the interface between the base material and dental porcelain without fixation firing, enabling the build-up and firing of dental porcelain on the dental glass composition. The present invention relates to a dental glass composition comprising a glass powder (A) and a binder, wherein the binder comprises a hydrophilic organic compound (B) that is solid at 25° C., and the dental glass composition is essentially free of water and propylene glycol.

Classes IPC  ?

• A61C 13/083 - Dents en porcelaine ou en céramique
• A61C 13/09 - Dents faites de plusieurs couches
• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
• A61K 6/833 - Composites verre-céramique
• A61K 6/836 - Verre

Abrégé

2525252525255.

Classes IPC  ?

• C04B 35/488 - Composites
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/822 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux des terres rares
• A61K 6/824 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux de transition
• A61K 6/831 - Emploi d'éléments non métalliques ou de leurs composés, p. ex. de carbone

Abrégé

The present invention provides a dental alumina calcined body that, when sintered under atmospheric pressure, results in a dental alumina sintered body that has excellent mechanical strength, has translucency suitable for dental use, tends not to turn yellow, and has excellent aesthetics suitable for dental use. The present invention relates to a dental alumina calcined body comprising alumina particles having an average primary particle diameter of 30 to 300 nm and a sintering auxiliary agent. The sintering auxiliary agent contains a Group 14 metal element component, and the content of the Group 14 metal element component exceeds 0 ppm but does not exceed 5,000 ppm.

Classes IPC  ?

• C04B 35/115 - Produits translucides ou transparents
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques
• A61K 6/824 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux de transition

Abrégé

The present invention provides a stereolithographic resin composition which is excellent in modeling accuracy, strength, toughness, and water resistance of a modeled article, and has little eluate from a modeled article. The present invention relates to a stereolithographic resin composition that contains a polyfunctional (meth)acrylic polymerizable compound (A) and a photopolymerization initiator (B) containing four or more heteroatoms per molecule. The stereolithographic resin composition preferably also contains a monofunctional (meth)acrylic polymerizable compound (C). The polyfunctional (meth)acrylic polymerizable compound (A) preferably contains a polyfunctional (meth)acrylic polymerizable compound (A)-I having a molecular weight of less than 500.

Classes IPC  ?

• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61C 13/15 - Dispositifs pour le durcissement des prothèses en matière plastique pour le durcissement par action de la lumière
• A61C 13/087 - Dents en résine artificielle
• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
• B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque
• B29C 64/314 - Préparation
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• C08F 290/06 - Polymères prévus par la sous-classe
• C08F 299/06 - Composés macromoléculaires obtenus par des interréactions de polymères impliquant uniquement des réactions entre des liaisons non saturées carbone-carbone, en l'absence de monomères non macromoléculaires à partir de polycondensats non saturés à partir de polyuréthanes

Abrégé

The present invention relates to a plate denture production kit for stereolithography including a curable composition for a denture base (I) containing a (meth)acrylic based polymerizable monomer component (A) containing a (meth)acrylic based polymerizable monomer (m) as a major monomer, and a photopolymerization initiator, and a composition for a prosthetic tooth (II) containing a (meth)acrylic based polymerizable monomer component (B) containing the same (meth)acrylic based polymerizable monomer (m) as contained in the curable composition for a denture base (I), having a content of the (meth)acrylic based polymerizable monomer (m) of 20% by mass or more based on 100% by mass of the (meth)acrylic based polymerizable monomer component (B), and a method of producing a plate denture.

Classes IPC  ?

• A61C 13/01 - Plaques-bases
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 13/087 - Dents en résine artificielle
• A61C 13/10 - Fixation des dents artificielles à un matériau de base artificiel, p. ex. à un palais artificiel ou à des dents artificielles adjacentes
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• C09D 4/00 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable
• C09D 135/02 - Homopolymères ou copolymères d'esters

Abrégé

The present invention provides a zirconia sintered body and a method of production thereof satisfying both high translucency and high strength suitable even for front teeth and canines (particularly, central incisors and lateral incisors). The present invention relates to a zirconia sintered body comprising zirconia, and a stabilizer capable of preventing a phase transformation of zirconia, wherein the zirconia sintered body comprises 20 to 50% of particles having a particle diameter of 0.45 μm or more and less than 1 μm in a number-based particle size distribution of its crystal particles, the particle diameter being a diameter passing through the particle's center of gravity.

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
• C04B 35/64 - Procédés de cuisson ou de frittage

Abrégé

The present invention provides a resin composition for stereolithography, the composition producing a formed object having excellent strength, toughness, water resistance, and stress retention while exhibiting little elution. The present invention relates to a resin composition for stereolithography, the composition containing: (A) a monofunctional methacrylic polymerizable compound having independent multiple aromatic rings; (B) a multifunctional (meth)acrylic polymerizable compound; and (C) a polymerization initiator.

Classes IPC  ?

• C08F 220/10 - Esters
• A61C 7/08 - Appareils de contention du type épousant la forme de la bouche
• A61C 13/10 - Fixation des dents artificielles à un matériau de base artificiel, p. ex. à un palais artificiel ou à des dents artificielles adjacentes
• A61K 6/15 - Compositions caractérisées par leurs propriétés physiques
• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61M 16/06 - Masques respiratoires ou pour l'anesthésie
• B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
• B29C 64/314 - Préparation
• B33Y 80/00 - Produits obtenus par fabrication additive
• C08F 2/44 - Polymérisation en présence d'additifs, p. ex. plastifiants, matières colorantes, charges
• C08F 290/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères modifiés par introduction de groupes aliphatiques non saturés terminaux ou latéraux

Abrégé

The present invention provides: a zirconia composition, a zirconia sintered body of which has excellent mechanical strength, and which is capable of controlling opalescence to an appropriate range; and a method for producing the same. The present invention relates to a zirconia composition comprising zirconia particles having a zirconia concentration of 80 mass% or more, and small particles having a stabilizer concentration of 10-50 mass%. The small particles have a primary particle diameter that is smaller than the average primary particle diameter of the zirconia particles.

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/824 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux de transition
• C01G 25/02 - Oxydes

Abrégé

4312d4312ddmtcydd)×100 (1-1) (Explanations of symbols in the formula are omitted)

Classes IPC  ?

• C04B 35/488 - Composites
• A61C 5/77 - Procédés ou dispositifs pour la fabrication des couronnes dentaires
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/822 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux des terres rares

Abrégé

The present invention provides: a zirconia calcined body that can provide a zirconia sintered body having excellent mechanical strength and light-transmitting properties; and a method for producing the zirconia calcined body. The present invention relates to a zirconia calcined body containing zirconia and a stabilizer capable of suppressing the occurrence of phase transition of zirconia, wherein the zirconia includes monoclinic zirconia, and the half-value width of a main peak derived from the monoclinic system in a powder X-ray diffraction pattern obtained using CuKα line is 0.18° or more.

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• A61C 5/77 - Procédés ou dispositifs pour la fabrication des couronnes dentaires
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/822 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux des terres rares

Abrégé

nn+1nnn+1n+1/ΔT of the density change in the (n+1)-th section is at least 0.010 in the temperature range of 1200-1350°C.

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique
• B01D 15/00 - Procédés de séparation comportant le traitement de liquides par des adsorbants ou des absorbants solidesAppareillages pour ces procédés
• C01G 25/02 - Oxydes

Abrégé

The present invention provides an alumina workable body for dental use that exhibits excellent translucency, strength, and linear light transmittance as a sintered body after sintering. The present invention relates to an alumina workable body for dental use with D1 and D2 that are different from each other, where D1 is the post-sintering average crystal grain size at a first point falling within an interval from one end P to 25% of the entire length on a straight line extending along a first direction from said one end P to the other end Q of the alumina workable body for dental use, and D2 is the post-sintering average crystal grain size at a second point falling within an interval from said other end Q to 25% of the entire length.

Classes IPC  ?

• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques

Abrégé

The present invention provides a method for manufacturing an oxide ceramic molded body that enables high-yield production of a molded body in a convenient fashion using a powder of oxide ceramic particles having a nano-sized average primary particle diameter (particularly, 120 nm or less). The present invention relates to a method for manufacturing an oxide ceramic molded body, comprising subjecting a powder containing oxide ceramic particles with an average primary particle diameter of 1 to 120 nm to press molding under reduced pressure. Preferably, the press molding is conducted under a reduced pressure of 0.1 to 100 kPa.

Classes IPC  ?

• C04B 35/488 - Composites
• C04B 35/64 - Procédés de cuisson ou de frittage

Abrégé

The present invention provides a dental curable composition and a dental prosthesis therefrom, capable of imparting fluorescence to the base material, as well as exhibiting outstanding operability, reducing shade changes in the base material, and providing excellent abrasion resistance, gloss retention, and fluorescence durability in the cured product. The present invention relates to a dental curable composition comprising a polymerizable compound (A), a polymerization accelerator (B), a fluorescent agent (C), and a polymerization initiator (D), wherein the polymerization accelerator (B) comprises a polyfunctional thiol (B-1) having two or more mercapto groups per molecule.

Classes IPC  ?

• A61K 6/17 - Taille des particules
• A61C 13/09 - Dents faites de plusieurs couches
• A61K 6/20 - Revêtements de protection pour dents naturelles ou artificielles, p. ex. scellements, revêtements colorés ou vernis

Abrégé

The present invention provides an alumina pre-sintered body that demonstrates reduced yellowing after sintering, exhibits high translucency and high linear light transmittance in the sintered body even when sintered under atmospheric pressure, and yields an alumina sintered body with high aesthetics suitable for dental applications. The present invention relates to an alumina pre-sintered body for dental use comprising alumina particles with an average primary particle diameter of 30 to 300 nm, a sintering aid, and a bluish colorant, wherein the content of the sintering aid is 10 to 5,000 ppm.

Classes IPC  ?

• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61K 6/17 - Taille des particules
• A61K 6/84 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des métaux ou des alliages

Abrégé

The present invention provides a zirconia pre-sintered body having suitable shades, translucency, and strength. The present invention relates to a zirconia pre-sintered body comprising a layered structure of at least three layers containing zirconia and a stabilizer capable of preventing a phase transformation of zirconia, the layered structure including at least two layers that differ from one another in the content of the stabilizer relative to the total mole of the zirconia and the stabilizer, the layered structure including at least two layers having substantially the same stabilizer content relative to the total mole of the zirconia and the stabilizer, the zirconia pre-sintered body containing a coloring component in all of the layers having substantially the same stabilizer content, and the layers having substantially the same stabilizer content differing from one another in the composition of the coloring component.

Classes IPC  ?

• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/822 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux des terres rares
• B32B 18/00 - Produits stratifiés composés essentiellement de céramiques, p. ex. de produits réfractaires
• C04B 35/488 - Composites
• C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
• C04B 35/64 - Procédés de cuisson ou de frittage

Abrégé

The present invention relates to a dental curable composition containing a (meth)acrylic based monomer (A) containing two or more (meth)acryloyloxy groups and one or more urethane bond in one molecule, a (meth)acrylate ester compound (B) containing two or more (meth)acryloyloxy groups and one or more hydroxy group in one molecule, a polymerization initiator (C), and an ion releasing compound (D); a dental filling and restorative material containing the dental curable composition; a dental cement containing the dental curable composition; and a dental abutment building material containing the dental curable composition.

Classes IPC  ?

• A61K 6/891 - Composés obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61K 6/71 - Charges

Abrégé

The present invention relates to a dental curable composition containing a (meth)acrylic based compound (A) having two or more (meth)acryloyl groups in one molecule, a particular mono(meth)acrylate ester compound (B), a chemical polymerization initiator (C), a polymerization accelerator (D), and a filler (E), being separately packaged in a first material containing the chemical polymerization initiator (C) and a second material containing the polymerization accelerator (D); a dental filling and restorative material containing the dental curable composition; a dental cement containing the dental curable composition; and a dental abutment building material containing the dental curable composition.

Classes IPC  ?

• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61K 6/61 - Initiateurs cationiques, anioniques ou redox
• A61K 6/77 - Verre

Abrégé

The present invention provides a zirconia sintered body and a method of production thereof that exhibit excellent flexural strength, fracture toughness, and translucency according to the yttria content. The present invention relates to a zirconia sintered body comprising zirconia particles, and satisfying A15/A50<0.60 (wherein A15 represents the particle diameter of when the cumulative area of zirconia particles reaches 15% of the total area, and A50 represents the particle diameter of when the cumulative area of zirconia particles reaches 50% of the total area in a SEM photograph of the zirconia sintered body when the area of each zirconia particle is calculated and the calculated areas are accumulated in sequence from particles with smaller areas, where the total area represents the sum of the areas of the zirconia particles in the SEM photograph).

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• C04B 35/64 - Procédés de cuisson ou de frittage

Abrégé

The present invention provides a zirconia composition that exhibits excellent translucency in its sintered body and that enables the mitigation of opalescent properties in the sintered body. The invention also provides a zirconia pre-sintered body and zirconia sintered body therefrom, along with methods that enable easy production of these. The present invention relates to a zirconia composition comprising a zirconia particle, and a stabilizer particle capable of preventing a phase transformation of zirconia, wherein: the zirconia has an average particle diameter (r1) of 1 to 60 nm, the stabilizer has an average particle diameter (r2) of 1 to 60 nm, and the half width of a peak derived from the stabilizer in a powder X-ray diffraction pattern by CuKα radiation is 0.05° to 1.0°. Using the zirconia composition allows the zirconia sintered body to exhibit reduced regularity in its structure, mitigating wavelength-selective reflection and/or transmission, resulting in reduced opalescent properties. This leads to the production of a zirconia sintered body that exhibits excellent translucency and low opalescent properties.

Classes IPC  ?

• C04B 35/488 - Composites
• C04B 35/64 - Procédés de cuisson ou de frittage

Abrégé

The present invention provides a curable composition for dental use, which has ion release properties and aesthetic properties and is excellent in terms of mechanical strength and dentine strengthening ability. The present invention pertains to a curable composition for dental use, which contains a glass (A), a polymerizable monomer (B), and a polymerization initiator (C), wherein the glass (A) contains strontium, zinc, boron, and fluorine, the content of strontium is 8-33 mass%, the content of zinc is 2.0-25 mass%, the content of boron is 1.0-11 mass%, the content of fluorine is 9-35 mass%, and the content of sodium is 0-0.5 mass% when the contents are expressed in mass% in terms of the contents of the respective constituent elements with respect to the whole mass of the glass (A).

Classes IPC  ?

• A61K 6/836 - Verre
• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

The present invention provides an oxide ceramic pre-sintered body for dental use and a method of production thereof having excellent machinability with a low probability of chipping while exhibiting high translucency after sintering. The present invention relates to an oxide ceramic pre-sintered body for dental use comprising oxide ceramic particles with an average primary particle diameter of 50 to 300 nm, and pores, and having a D10 of 20 nm or more and a D90 of 90 nm or less in a cumulative distribution of pores within the pre-sintered body. The oxide ceramic pre-sintered body for dental use has a relative density of preferably 43 to 63%. The oxide ceramic pre-sintered body for dental use has a BET specific surface area of preferably 5 to 25 m2/g as measured in compliance with JIS Z 8830:2013.

Classes IPC  ?

• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61K 6/17 - Taille des particules
• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium

Abrégé

The purpose of the present invention is to make it possible to further reduce the risk of fracture of a part to be processed, while maintaining appropriate adhesive force between the part to be processed and a holding part.　A mill blank assembly (10) has a part to be processed (20), a holding part (30) for holding the part to be processed (20), and an adhesive layer (40). The adhesive layer (40) is disposed between a first adhesive surface (21) and a second adhesive surface (33), which are adhesive surfaces of the part to be processed (20) and the holding part (30), and bonds the part to be processed (20) and the holding part (30). The second adhesive surface (33) of the holding part (30) has an uneven structure (36) including a convex part (34) and a concave part (35), and the convex part (35) and the concave part (36) are not fitted to each other.

Classes IPC  ?

• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 8/00 - Moyens destinés à être fixés à l'os de la mâchoire pour consolider les dents naturelles ou pour y assujettir des prothèses dentairesImplants dentairesOutils pour l'implantation
• A61C 13/083 - Dents en porcelaine ou en céramique

Abrégé

Provided is a mill blank assembly which relaxes vibration generated during processing in a CAD/CAM processing machine and is excellent in processing accuracy. The present invention pertains to the mill blank assembly that includes a part to be processed, a holding part, and an adhesive composition, satisfying the following conditions [1] and/or [2]: [1] The loss coefficient tanδ at 20°C in a very micro-indentation test (nanoindenter) of a cured product of the adhesive composition is 0.70 or less; and [2] The ratio (X1/Y1) of the peel adhesive strength (X1) and the fracture strain (Y1) in the compression-shear adhesion test between the part to be processed and the holding part at 20°C is 1,200 N/mm or less.

Classes IPC  ?

• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 8/00 - Moyens destinés à être fixés à l'os de la mâchoire pour consolider les dents naturelles ou pour y assujettir des prothèses dentairesImplants dentairesOutils pour l'implantation
• A61C 13/083 - Dents en porcelaine ou en céramique

Abrégé

The present invention provides a dental curable composition that exhibits excellent mechanical strength in its cured product, and possesses high paste flowability and sufficient formability, previously deemed conflicting paste properties. The present invention relates to a dental curable composition comprising a polymerizable monomer (A), a filler (B), and a polymerization initiator (C), wherein: the polymerizable monomer (A) comprises 0 parts or more by mass and less than 15 parts by mass of a hydrophilic polymerizable monomer (A-1a) having no acidic group, and 55 parts or more by mass of a hydrophobic polymerizable monomer (A-1b) having no acidic group in total 100 parts by mass of the polymerizable monomer (A), and the hydrophilic polymerizable monomer (A-1a) having no acidic group has a solubility of 4.5 g/L or more in water at 25° C., the filler (B) comprises 1 to 60 parts by mass of a spherical filler (B-1) having an average particle diameter of 0.01 to 1 μm, 40 to 99 parts by mass of an irregularly shaped filler (B-2) having an average particle diameter of 0.5 to 6.0 μm, and 0 to 10 parts by mass of an irregularly shaped fine particulate filler (B-3) having an average particle diameter of less than 0.5 μm in total 100 parts by mass of the filler (B), and the spherical filler (B-1) is hydrophobized with a hydrophobizing agent (x-1), and the polymerization initiator (C) comprises a photopolymerization initiator (C-1).

Classes IPC  ?

• A61K 6/17 - Taille des particules
• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61K 6/896 - Composés polyorganosiliciés

Abrégé

The present invention provides a dental composition that exhibits excellent storage stability even under severe conditions, and shows sufficient mechanical strength in its cured product. The invention also provides a method of production of such dental compositions, and surface-treated fillers for dental use. The present invention relates to a dental composition comprising a polymerizable monomer (A), a polymerization initiator (B), and a filler (C), wherein the filler (C) comprises a surface-treated filler for dental use (C-1) surface-treated with a silane coupling agent (a) having a polymerizable group, and an end capping agent (b), and the surface-treated filler for dental use (C-1) shows a dissolution rate of less than 100 ppm for metallic components in an acid resistance test.

Classes IPC  ?

• A61K 6/896 - Composés polyorganosiliciés
• A61K 6/78 - Pigments

Abrégé

Provided is a dental composition kit having a high mineral density recovery ability. The dental composition kit comprises an A liquid and a B liquid. The A liquid contains calcium ions (a1) and water (b1). The B liquid contains a compound (c) represented by formula (I) and having an acidic group: formula (I): R1kk, wherein in formula (I), R1 represents an organic group that has 40 or less carbon atoms and may or may not have at least one (meth) acryloyloxy group; X represents an acidic group; k represents an integer of 1 or 2; and when k is 2, the two acidic groups X are the same or different from each other; zinc ions (d1) and water (b2), and substantially does not contain a crosslinkable polymerizable monomer.

Classes IPC  ?

• A61K 6/20 - Revêtements de protection pour dents naturelles ou artificielles, p. ex. scellements, revêtements colorés ou vernis
• A61K 8/19 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés inorganiques
• A61K 8/27 - ZincSes composés
• A61K 8/55 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques contenant du phosphore
• A61Q 11/00 - Préparations pour le nettoyage des dents, de la bouche ou des prothèses dentaires, p. ex. dentifricesBains de bouche

Abrégé

In order to provide a static mixer and a paste injector with which it is possible to adjust, with a simple structure, the pushing force of a plunger while preventing air bubbles from being mixed into a dental material being discharged, a static mixer (7) includes: a plurality of paste passages (29, 29') that are disposed side by side on a circumference centered on a central axis (CA) of a syringe (3), and that extend in a longitudinal direction (X); an intermediate passage (31); and a mixing passage (33) that extends centered on the central axis (CA). The inner circumferential surface of each of the plurality of paste passages (29, 29') has a tapered portion formed in a tapered shape approaching the central axis (CA) toward outflow holes (29B, 29B') from inflow holes (29A, 29A') in distal surfaces (29C, 29C'), and the opening area of the inflow holes (29A, 29A') is greater than the opening area of the outflow holes (29B, 29B').

Classes IPC  ?

• B01F 25/432 - Tubes de mélange, p. ex. dans lesquels la matière est déplacée dans une direction radiale ou partiellement inversée avec des moyens pour diviser l’écoulement de matière en écoulements secondaires séparés et pour repositionner et recombiner ces écoulements secondairesMélange croisé, p. ex. en amenant la couche extérieure de la matière plus près de l'axe du tube ou vice-versa
• A61C 5/64 - Applicateurs, p. ex. seringues ou pistolets pour compositions à composants multiples
• B01F 23/50 - Mélange de liquides avec des solides
• B01F 23/60 - Mélange de solides avec des solides
• B01F 35/53 - Récipients de mélange caractérisés par la configuration de l'intérieur, p. ex. chicanes pour faciliter le mélange des composants
• B01F 35/71 - Mécanismes d'alimentation
• B01F 101/19 - Mélange de compositions dentaires

Abrégé

The present invention provides a dental polymerizable composition which is excellent in terms of toughness and water resistance of a cured product, and a cured product of which has little eluate. The present invention relates to a dental polymerizable composition which contains a polyfunctional (meth)acrylic polymerizable compound (A) and a photopolymerization initiator (B) that does not contain a phosphine oxide skeleton. It is preferable that the photopolymerization initiator (B) that does not contain a phosphine oxide skeleton contains a Norrish type II photopolymerization initiator. It is preferable that the polyfunctional (meth)acrylic polymerizable compound (A) contains a polyfunctional (meth)acrylic polymerizable compound (A)-I that has a molecular weight of less than 1000 and/or a polyfunctional (meth)acrylic polymerizable compound (A)-II that has a molecular weight of 1,000 or more.

Classes IPC  ?

• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C08F 2/44 - Polymérisation en présence d'additifs, p. ex. plastifiants, matières colorantes, charges
• C08F 290/06 - Polymères prévus par la sous-classe

Abrégé

The present invention provides a paste injector that makes it possible to specify a relative position between a syringe and a mounted member to a prescribed position. To this end, provided is a paste injector comprising a mounted member (M) that is removably mounted on a syringe (3) which has discharge ports (51, 51') formed therein, wherein: the mounted member (M) includes a cylindrical outer body (OM) into which the syringe (3) is inserted and which is rotatable around a center axis (CA) and an interior member (IM) which is disposed inside the outer body (OM); the syringe (3) is inserted into the outer body (OM) along the center axis (CA), and the outer body (OM) is fixed to the syringe (3) via an engagement structure in which engagement is achieved through rotation around the center axis (CA); the engagement structure has three or more engagement sets of an engaging part (45) which is formed in the syringe (3) and an engagement-receiving part (107) which is formed in the outer body (OM) and which can be engaged with the engaging part (45); and the three or more engagement sets are arranged along the rotation direction of the outer body (OM) and are non-symmetrical about the center axis (CA) when view along the center axis (CA).

Classes IPC  ?

• A61C 5/64 - Applicateurs, p. ex. seringues ou pistolets pour compositions à composants multiples

Abrégé

The present invention provides a curable dental composition which exhibits sufficient fluidity with which to suppress floating of a prosthesis at the time of cementing and which exhibits excellent excess cement removal properties at the time of preliminary irradiation. The present invention relates to a curable dental composition which contains a polymerizable monomer (A), a filler (B), a polymerization initiator (C), a polymerization accelerator (D) and a rheology modifier (E). The polymerization initiator (C) includes a photopolymerization initiator (C-1). The viscosity V1 at an initial shearing rate D1 (0.01 s-1), which is determined by measuring the viscosity with a rotating rheometer over time for a total of 3 minutes, namely 1 minute at the shearing rate D1 (0.01 s-1), 1 minute at a shearing rate D2 (10 s-1) and another 1 minute at the shearing rate D1, is not less than 10,000 Pa·s and less than 20,000 Pa·s. The viscosity V2 at the shearing rate D2 (10 s-1) is 100 Pa·s or less. The time T required for the viscosity V3 to reach 10,000 Pa·s after the shearing rate is switched from D2 to D1 again is less than 40 seconds after the shearing rate is switched from D2 to D1.

Classes IPC  ?

• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61K 6/76 - Charges comprenant des composés contenant du silicium
• A61K 6/77 - Verre

Abrégé

The present invention provides a stereolithographic article adhesive composition having excellent adhesiveness with respect to a shaped article produced by stereolithography. The present invention relates to a stereolithographic article adhesive composition comprising a multifunctional (meth)acrylic-based polymerizable monomer (A) and a photopolymerization initiator (B). The multifunctional (meth)acrylic-based polymerizable monomer (A) preferably contains at least one of a urethanated (meth)acrylic acid ester compound (a-1), an aromatic compound-based (meth)acrylic acid ester compound (a-2) containing no urethane bond, and a (meth)acrylamide group-containing polymerizable monomer (a-3).

Classes IPC  ?

• C09J 4/00 - Adhésifs à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable
• A61K 6/35 - Préparations pour la stabilisation de prothèses dentaires dans la bouche
• A61K 6/79 - Initiateurs
• C08L 33/24 - Homopolymères ou copolymères des amides ou des imides

Abrégé

The present invention provides a stereolithographic resin composition from which a shaped article having excellent strength, toughness, water resistance, and impact resistance is obtained. The present invention pertains to a stereolithographic resin composition containing: a polyfunctional (meth)acrylic polymerizable compound (A) having a molecular weight of less than 1,000; a polyfunctional (meth)acrylic polymerizable compound (B) having a molecular weight of at least 1,000; a monofunctional (meth)acrylic polymerizable compound (C) that does not contain a hydroxyl group and contains a cyclic ether structure; and a photopolymerization initiator (D).

Classes IPC  ?

• C08F 290/06 - Polymères prévus par la sous-classe
• A61C 13/15 - Dispositifs pour le durcissement des prothèses en matière plastique pour le durcissement par action de la lumière
• B29C 64/135 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p. ex. par irradiation globale combinée avec un masque la source d’énergie étant concentrée, p. ex. lasers à balayage ou sources lumineuses focalisées
• B29C 64/314 - Préparation
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive

Abrégé

The present invention provides a method of producing an intraoral appliance equipped with a coated film including an intraoral appliance that is a stereolithographic article of a stereolithographic curable composition having formed on a prescribed surface thereof a coated film capable of imparting excellent adhesion durability and toughness, and relates to a method of producing an intraoral appliance equipped with a coated film, including coating on a prescribed surface of an intraoral appliance that is a stereolithographic article of a stereolithographic curable composition (A) containing a (meth)acrylic based polymerizable monomer (a) and a photopolymerization initiator (b), a curable composition (B) containing the same (meth)acrylic based polymerizable monomer (a) as contained in the stereolithographic curable composition (A), so as to form a coated film of a resin (B1) containing a polymer having a structure derived from the same (meth)acrylic based polymerizable monomer (a) as contained in the stereolithographic curable composition (A), on the prescribed surface of the intraoral appliance.

Classes IPC  ?

• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 13/01 - Plaques-bases
• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61K 6/889 - Ciments à base de polycarboxylateCiments à base de verre ionomère
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
• B33Y 80/00 - Produits obtenus par fabrication additive

Abrégé

The present invention relates to a method of producing a denture, including adhering a denture base that is a stereolithographic article of a curable composition (I) containing a (meth)acrylic based polymerizable monomer component (A) containing a (meth)acrylic based polymerizable monomer (m) as a major monomer, and a photopolymerization initiator, and a prosthetic tooth containing an acrylic based resin (II), with an adhesive composition containing a composition (III) containing a (meth)acrylic based polymerizable monomer component (C) containing the same (meth)acrylic based polymerizable monomer (m) as contained in the curable composition (I).

Classes IPC  ?

• A61C 13/01 - Plaques-bases
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

The present invention provides a dental adhesive kit whereby a separate-pack type dental adhesive composition exhibits excellent bond durability with respect to the surface of a one-pack type self-adhesive dental composite resin coating a prepared tooth surface. The present invention relates to a dental adhesive kit comprising: a one-pack type self-adhesive dental composite resin (X) that comprises a monomer (a-1) having a divalent phosphoric acid group with a backbone C8 to C16 alkyl or alkylene group within the molecule, a monomer (b) having no acidic group, a photopolymerization initiator (c), and a filler (d); and a separate-pack type dental adhesive composition (Y) that comprises a first agent and a second agent that are separately packed from each other, with the first agent comprising a monomer (a) having an acidic group, and a chemical polymerization initiator (e), and the second agent comprising a monomer (b) having no acidic group, wherein a cured product of the self-adhesive dental composite resin (X) after light curing has a flexural modulus ranging from 1.5 to 6 GPa, and a cured product of the separate-pack type dental adhesive composition (Y) after chemical curing has a flexural modulus ranging from 1.5 to 6 GPa.

Classes IPC  ?

• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• A61C 5/00 - Obturation ou recouvrage des dents
• A61K 6/62 - Initiateurs radicalaires photochimiques

Abrégé

The present invention provides a paste-form two-pack type dental curable composition having an adequate working time range and superior bond strength to dentin, in addition to showing small variation in working time, small decline in bond strength to dentin, and low risk of paste solidification over extended storage. The present invention relates to a paste-form two-pack type dental curable composition comprising: a first agent that comprises an acidic group-containing polymerizable monomer (A), an acidic group-free polymerizable monomer (B), an organic peroxide (C), a nitrogen atom-containing ligand (D), and a filler (E); and a second agent that comprises an acidic group-free polymerizable monomer (B), a thiourea compound (F), and a filler (E).

Classes IPC  ?

• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• A61K 6/76 - Charges comprenant des composés contenant du silicium
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

The present invention provides a dental curable composition and a dental prosthesis therewith with which shade changes in the base material can be reduced, and that exhibit excellent gloss retention in the cured product while demonstrating excellence in operability. The present invention relates to a dental curable composition comprising a polymerizable compound (A), a polyfunctional thiol (B) having two or more mercapto groups per molecule, a polysiloxane (C), and a polymerization initiator (D).

Classes IPC  ?

• A61K 6/896 - Composés polyorganosiliciés
• A61C 13/087 - Dents en résine artificielle
• A61K 6/831 - Emploi d'éléments non métalliques ou de leurs composés, p. ex. de carbone

Abrégé

The present invention pertains to a dental composition that contains a compound (a) having an acidic group, represented by the following formula (I): Formula (I): R1kk [where R1 represents an organic group having 40 carbon atoms or less, with or without at least one (meth)acryloyloxy group, X represents an acidic group, k represents an integer that is 1 or 2, and when k is 2, the two acidic groups X may be identical or different], calcium ions (b1), water (c), and a hydrophilic solvent (d), and that does not essentially contain a crosslinkable polymeric monomer that is an organic compound other than the compound (a) having an acidic group and that is an organic compound other than the hydrophilic solvent (d).

Classes IPC  ?

• A61K 6/54 - ObturationScellement
• A61K 8/19 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés inorganiques
• A61K 8/24 - PhosphoreSes composés
• A61K 8/37 - Esters d'acides carboxyliques
• A61Q 11/00 - Préparations pour le nettoyage des dents, de la bouche ou des prothèses dentaires, p. ex. dentifricesBains de bouche

Abrégé

The present invention provides a dental filling kit that exhibits good cavity sealing properties even when the cured product is subjected to repeated loads after cavities deeper than 2 mm, which normally require layered filling, are filled in bulk. The present invention relates to a dental filling kit comprising: a self-adhesive dental composite resin (X) that comprises a monomer (a) having an acidic group, a monomer (b) having no acidic group, a polymerization initiator (c), and a filler (d); and a dental composite resin (Y) that comprises a monomer (b) having no acidic group, a polymerization initiator (c), and a filler (d), but does not comprise a monomer (a) having an acidic group, wherein the polymerization initiator (c) contained in the dental composite resin (Y) comprises a photopolymerization initiator (c-1), and the dental composite resin (Y) is a bulk-fill composite resin, and has depth of cure of 4 mm or more.

Classes IPC  ?

• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

The present invention provides a dental composition that has high mechanical strength, excellent ease of polishing, and not only good paste properties but also high adhesive strength to tooth substance. The present invention relates to a dental composition that contains a monomer having an acidic group (a), a monomer free of acidic groups (b), a polymerization initiator (c), and a filler (d), the filler (d) containing an aggregated filler (d-1) in which primary particles are aggregated, the primary particles being a metal oxide, and the specific surface area of the aggregated filler (d-1) measured by the BET method being from 5 m2/g to 60 m2/g.

Classes IPC  ?

• A61K 6/80 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents
• A61K 6/15 - Compositions caractérisées par leurs propriétés physiques
• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/836 - Verre

Abrégé

222222 is 10.0-50.0 mass% per 100 mass% of the dental porcelain; and a method for manufacturing a dental prosthetic appliance, the method comprising a step for applying the dental porcelain onto a zirconia substrate, and a step for firing the dental porcelain at 880-980°C.

Classes IPC  ?

• A61K 6/833 - Composites verre-céramique
• A61C 13/003 - Prothèses sans plaque-base, p. ex. bridges dentairesLeur fabrication
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/822 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux des terres rares
• A61L 27/10 - Céramiques ou verres
• C03C 3/062 - Compositions pour la fabrication du verre contenant de la silice avec moins de 40% en poids de silice
• C03C 3/078 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant un oxyde d'un métal divalent, p. ex. un oxyde de zinc
• C03C 3/085 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant de l'oxyde d'aluminium ou un composé du fer contenant un oxyde d'un métal divalent
• C03C 3/087 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant de l'oxyde d'aluminium ou un composé du fer contenant un oxyde d'un métal divalent contenant de l'oxyde de calcium, p. ex. verre à vitre ordinaire ou verre pour récipients creux
• C04B 35/18 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base de silicates autres que l'argile riches en oxyde d'aluminium

Abrégé

A cutting machining device for a dental prosthesis cuts a block shaped workpiece with a machining tool by changing a relative positional relationship between the machining tool and the workpiece in three dimensions. The workpiece includes a plane (A1 plane) to which a base for attachment to the cutting machining device is fixed, and the cutting machining device includes a holding device as a positioning portion that positions the workpiece with respect to the machining tool so that the workpiece is cut from a vertical direction with respect to a facing plane (A2 plane) that faces the A1 plane.

Classes IPC  ?

• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication

Abrégé

The present invention provides: a dental ceramic oxide calcined body that has excellent machinability, a low probability that chipping will occur, and high light transmittance after sintering; and a method for producing the same. The present invention relates to a dental ceramic oxide calcined body that includes ceramic oxide particles having an average primary particle diameter of 50–300 nm and fine pores, wherein D10 and D90 in a cumulative distribution of the fine pores in the calcined body are at least 20 nm and at least 90 nm, respectively. The dental ceramic oxide calcined body preferably has a relative density of 43%–63%. The BET specific surface area of the dental ceramic oxide calcined body as measured in accordance with JIS Z 8830:2013 is preferably 5–25 m2/g.

Classes IPC  ?

• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium

Abrégé

The present invention provides: a partially sintered body comprising an oxide ceramic which has excellent polishing properties and has a favorable aesthetic appearance, since the polished surface of the partially sintered body and the surface of the sintered body thereof following sintering are very smooth; and a method for producing the same.　The present invention pertains to an oxide ceramic partially sintered body for dental use which contains oxide ceramic particles having an average roundness of the primary particles thereof of 0.81 or higher, and has a relative density of 43-63%.

Classes IPC  ?

• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques
• A61C 5/77 - Procédés ou dispositifs pour la fabrication des couronnes dentaires
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• C04B 35/111 - Céramiques fines
• C04B 35/486 - Céramiques fines

Abrégé

The present invention provides an alumina pre-sintered body in which post-sintering yellowing is suppressed, a sintered body of which is highly translucent and has high linear light transmittance even when sintered under atmospheric pressure, and which becomes an alumina sintered body having high aesthetic qualities suitable for dental use. The present invention relates to a dental-use alumina pre-sintered body comprising alumina particles having an average primary particle diameter of 30-300 nm, a sintering aid, and a blue coloring agent, wherein the sintering aid content is 10-5,000 ppm.

Classes IPC  ?

• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/17 - Taille des particules
• A61K 6/804 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de manganèse
• C04B 35/117 - Composites

Abrégé

The present invention provides a zirconia sintered body that excels in both mechanical strength and translucency, and a zirconia molded body and zirconia pre-sintered body capable of providing such a zirconia sintered body, and containing a binder in an amount that assumes a thickness of 10 mm or more. The invention also provides methods of production of these. The present invention relates to a zirconia molded body comprising: a zirconia particle containing 2.0 to 9.0 mol % of yttria relative to the total number of moles of zirconium oxide and yttria, and having an average primary particle diameter of 60 nm or less; a polyol; and a binder, the polyol and the binder satisfying the 10 relational formula X1

Classes IPC  ?

• C04B 35/488 - Composites
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
• C04B 35/634 - Polymères
• C04B 35/64 - Procédés de cuisson ou de frittage

Abrégé

The present invention provides an oxide-ceramic molded body manufacturing method which uses an oxide-ceramic powder having a nano-order average primary particle size (in particular, 120 nm or less), and which is able to manufacture a molded body with a high production yield in a simple manner. The present invention relates to a method for manufacturing an oxide-ceramic molded body, which involves press-molding a powder that contains oxide-ceramic particles having an average primary particle size of 1-120 nm under a reduced pressure. The press molding is preferably carried out under a reduced pressure of 0.1-100 kPa.

Classes IPC  ?

• B28B 3/02 - Fabrication d'objets façonnés en utilisant des pressesPresses spécialement adaptées à ce travail dans laquelle un poinçon exerce une pression sur le matériau dans une cavité de moulagePoinçons de forme particulière
• B82Y 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• A61C 13/083 - Dents en porcelaine ou en céramique
• C04B 35/486 - Céramiques fines

Abrégé

The present invention provides an alumina workable body for dental use which, upon sintering, produces a sintered body which has excellent translucency, strength and linear light transmittance. The present invention pertains to an alumina workable body for dental use, wherein D1 and D2 differ from one another, if D1 is the average crystal grain diameter after sintering at a first point within an interval extending from one end P of the alumina workable body for dental use to 25% of the entire length along a straight line which extends in a first direction from said one end P toward the other end Q, and D2 is the average crystal grain diameter after sintering at a second point within an interval extending from the other end Q to 25% of the entire length along said straight line.

Classes IPC  ?

• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique
• C04B 35/111 - Céramiques fines

Abrégé

The present invention provides a dental composition that shows improved adhesive properties to dental restoration materials such as porcelain, as well as tooth structure, and that is suited for reducing property changes during storage. The present invention relates to a dental composition comprising an organosilicon compound (A) represented by the following general formula (1), The present invention provides a dental composition that shows improved adhesive properties to dental restoration materials such as porcelain, as well as tooth structure, and that is suited for reducing property changes during storage. The present invention relates to a dental composition comprising an organosilicon compound (A) represented by the following general formula (1), Z—Xm—Y—SiR1nR2(3-n)  (1) The present invention provides a dental composition that shows improved adhesive properties to dental restoration materials such as porcelain, as well as tooth structure, and that is suited for reducing property changes during storage. The present invention relates to a dental composition comprising an organosilicon compound (A) represented by the following general formula (1), Z—Xm—Y—SiR1nR2(3-n)  (1) wherein Z represents a (meth)acryloyloxy group, a (meth)acrylamide group, a mercapto group, or an epoxy group, X represents a divalent organic group with a ratio C/O of 1 to 3, where C is the total number of carbon atoms, and O is the total number of oxygen atoms, Y represents a divalent hydrocarbon group having 1 to 30 carbon atoms, R1 represents a group selected from the group consisting of an alkyl group, an aryl group, and an aralkyl group, R2 represents a hydroxyl group or a hydrolyzable group, m represents an integer of 1 to 8, and n represents 0, 1, or 2, and wherein R1, R2, and X each may be the same or different when R1, R2, or X is plural.

Classes IPC  ?

• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires

Abrégé

12211*(W-B)≥0.85

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/824 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux de transition
• A61L 27/10 - Céramiques ou verres
• C01G 25/00 - Composés du zirconium
• C01G 25/02 - Oxydes

Abrégé

A dental adhesive composition containing: a polymerizable monomer (A) that has an acidic group; and a photoredox catalyst (B) that has a singlet excited state reduction potential ES1redred of 1.5 V vs. SCE or greater.

Classes IPC  ?

• A61K 6/831 - Emploi d'éléments non métalliques ou de leurs composés, p. ex. de carbone
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 13/23 - Fixation des prothèses dans la bouche utilisant des feuilles adhésives ou des compositions adhésives
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

The present invention provides a dental filling kit that comprises a dental cleaning material and a self-adhesive dental composite resin, and that exhibits good adhesive properties to tooth structure, and good sealing properties for cavities. The present invention relates to a dental filling kit comprising: a self-adhesive dental composite resin (X) comprising a monomer (a) having an acidic group, a monomer (b) having no acidic group, a polymerization initiator (c), and a filler (d); and a dental cleaning material (Y) having a pH of 2.0 or more and less than 9.0.

Classes IPC  ?

• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques

Abrégé

A composition comprises a zirconia powder, in which 55% or more thereof is monoclinic, and a stabilizer capable of suppressing phase transition of zirconia. An average particle diameter of zirconia particles and particles of the stabilizer is 0.06 μm to 0.17 μm. At least a portion of the stabilizer does not form a solid solution with zirconia.

Classes IPC  ?

• C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
• A61C 5/73 - Couronnes composées

Abrégé

An object of the present invention is to provide a dental composition that exhibits small polymerization shrinkage stress, and provides excellent mechanical strength. The present invention relates to a dental composition comprising a compound (A), a monomer (B) having a solubility of 50 g/L or more in acetone at 25° C., and a polymerization initiator (C), An object of the present invention is to provide a dental composition that exhibits small polymerization shrinkage stress, and provides excellent mechanical strength. The present invention relates to a dental composition comprising a compound (A), a monomer (B) having a solubility of 50 g/L or more in acetone at 25° C., and a polymerization initiator (C), wherein the compound (A) has a weight-average molecular weight of 1,000 to 80,000, and includes a Tg of less than 40° C., in addition to having a solubility of less than 50 g/L in acetone at 25° C. Preferably, the compound (A) comprises a compound having a polymerizable group.

Classes IPC  ?

• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61C 5/20 - Réparation d'altérations liées à l'attrition, p. ex. facettes
• C08F 222/10 - Esters
• C08L 35/02 - Homopolymères ou copolymères des esters

Abrégé

The present invention provides a dental cement that excels in ease of handling without its powder-to-liquid ratio greatly affecting ease of handling such as kneadability or ease of filling as compared to traditional dental portland cements, and that can provide a hardened material having excellent compressive strength. The present invention relates to a dental cement comprising a powder component and a liquid component, wherein: the powder component comprises a portland cement powder (A), the liquid component comprises water (C), and at least one of the powder component and the liquid component comprises a cationic surfactant (B). Preferably, the liquid component comprises the cationic surfactant (B).

Classes IPC  ?

• A61K 6/851 - Ciments Portland
• A61K 6/61 - Initiateurs cationiques, anioniques ou redox

Abrégé

Provided is a carious tooth structure recovery agent which can treat many teeth at one time and is therefore convenient, and can apply a prophylactic treatment and an early caries treatment for a cementum caries aesthetically without causing the discoloration of a treated site. The carious tooth structure recovery agent contains a compound (a) having an acidic group and represented by formula (I): R1-X [wherein R1 represents an organic group which has at least one (meth)acryloyloxy group or which has no (meth)acryloyloxy group and has 40 or less carbon atoms; and X represents an acidic group], a zinc ion (b1), water (c), and a hydrophilic solvent (d), and does not substantially contain a crosslinkable polymerizable monomer.

Classes IPC  ?

• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
• A61K 6/70 - Préparations pour la technique dentaire comprenant des additifs inorganiques

Abrégé

The present invention provides a dental restorative curable composition that has high mechanical strength and toughness and has excellent water resistance and smoothness/gloss durability in the form of a cured product, a dental composite resin comprising the dental restorative curable composition, and a dental mill blank comprising a cured product of the dental restorative curable composition. The present invention relates to a dental restorative curable composition comprising: a (meth)acrylic acid ester compound (A) which has at least one polymer structure selected from the group consisting of a polycarbonate, a polyarylate, and an aromatic polysulfone and in which terminal hydroxy residues derived from repeating units constituting the polymer structure are directly (meth)acryloylated; a (meth)acrylic acid ester compound (B) having two or more (meth)acryloyloxy groups (excluding the (meth)acrylic acid ester compound (A)); an inorganic filler (C) having an average primary particle diameter of 0.01 to 5 μm; and a polymerization initiator (D).

Classes IPC  ?

• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61K 6/871 - QuartzSiO2

Abrégé

An object of the present invention is to provide a dental composition that exhibits small polymerization shrinkage stress, and provides excellent mechanical strength. The present invention relates to a dental composition comprising a compound (A) having a weight-average molecular weight of 2,000 or more, a monomer (B), and a polymerization initiator (C), wherein the compound (A) having a weight-average molecular weight of 2,000 or more has a glass transition region including a temperature range of 20 to 40° C., and the monomer (B) excludes the compound (A) having a weight-average molecular weight of 2,000 or more. The compound (A) having a weight-average molecular weight of 2,000 or more has a weight-average molecular weight of preferably less than 50,000.

Classes IPC  ?

• A61K 6/893 - Polyuréthanes
• A61K 6/15 - Compositions caractérisées par leurs propriétés physiques
• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• A61K 6/62 - Initiateurs radicalaires photochimiques
• A61K 6/71 - Charges
• A61K 6/829 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des composites cermets
• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone

Abrégé

The present invention relates to: a dental porcelain paste that contains a glass powder (A), an organic solvent (B), and a colorant (C), the color of which disappears during firing, and that satisfies at least one condition selected from condition (1) and condition (2); a dental porcelain kit; and a method for producing a dental porcelain prothesis. Condition (1): the color difference ΔE*calculated from a color tone obtained by measuring, in the L*a*b*color space, the color of the dental porcelain paste at a thickness of 0.5 mm before firing and a color tone obtained by measuring, in the L*a*b*color space, the color of a fired body having a thickness of 0.5 mm, the fired body being obtained by vacuum firing the dental porcelain paste at 740°C, is 8.5 or higher. Condition (2): the lightness difference ΔL*calculated from a lightness obtained by measuring, in the L*a*b*color space, the color of the dental porcelain paste at a thickness of 0.5 mm before firing and a lightness obtained by measuring, in the L*a*b* color space, the color of the fired body having a thickness of 0.5 mm that is obtained by vacuum firing the dental porcelain paste at 740°C is 6.5 or higher.

Classes IPC  ?

• A61K 6/15 - Compositions caractérisées par leurs propriétés physiques
• A61K 6/20 - Revêtements de protection pour dents naturelles ou artificielles, p. ex. scellements, revêtements colorés ou vernis
• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
• A61K 6/77 - Verre
• A61K 6/836 - Verre

Abrégé

The present invention provides curable calcium phosphate dental cement that has excellent sealability for dentinal tubule, is expected to form fluoroapatite, and has a curing time that is advantageous for clinical use. The present invention is directed to curable calcium phosphate dental cement including: a first material as powder or nonaqueous paste; and a second material as liquid or aqueous paste, and, in the curable calcium phosphate dental cement, the first material comprises tetracalcium phosphate (A), alkali metal salt of phosphoric acid (B), and acidic calcium phosphate (C), the second material comprises water (D), and at least one of the first material and the second material comprises a fluorine compound (E) and an organic acid (F) having a molecular weight of 10000 or less.

Classes IPC  ?

• A61K 6/864 - Ciments à base de phosphates
• A61Q 11/00 - Préparations pour le nettoyage des dents, de la bouche ou des prothèses dentaires, p. ex. dentifricesBains de bouche

Abrégé

A composition comprises a zirconia powder, in which 55% or more thereof is monoclinic, and a stabilizer capable of suppressing phase transition of zirconia. An average particle diameter of zirconia particles and particles of the stabilizer is 0.06 μm to 0.17 μm. At least a portion of the stabilizer does not form a solid solution with zirconia.

Classes IPC  ?

• C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
• A61C 5/73 - Couronnes composées

Abrégé

The present invention provides a dental adhesive composition that can achieve both processability into a thin film of a cured product and high mechanical strength over a long period of time. This dental adhesive composition contains an acidic group-containing monomer (A), acidic group-free monomers (B), a polymerization initiator (C), water (D), a volatile organic solvent (E) and a filler (F), wherein: the acidic group-free monomers (B) include a monomer having 3 or more polymerizable groups per molecule (B-1), a hydrophobic monomer having 1 or 2 polymerizable groups per molecule (B-2), and a hydrophilic monomer having 1 or 2 polymerizable groups per molecule (B-3); the viscosity is less than 40 cps when measured at 30°C using a type B viscometer; and a cured product thereof has a water absorption rate of 4.0% or less.

Classes IPC  ?

• A61K 6/20 - Revêtements de protection pour dents naturelles ou artificielles, p. ex. scellements, revêtements colorés ou vernis
• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• A61K 6/62 - Initiateurs radicalaires photochimiques

Abrégé

The present invention provides a pre-sintered body for obtaining a zirconia sintered body that can satisfy both high strength and high translucency, and a method of production of such a pre-sintered body. The present invention relates to a zirconia pre-sintered body comprising a secondary aggregate having an average particle diameter of 275 nm or less, the secondary aggregate comprising zirconia, and a stabilizer capable of preventing a phase transformation of zirconia, the secondary aggregate comprising a larger particle having an average primary particle diameter of 100 nm or more and 200 nm or less, and a smaller particle having an average primary particle diameter of 10 nm or more and less than 60 nm.

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
• C04B 35/64 - Procédés de cuisson ou de frittage

Abrégé

The present invention provides a granule and green compact suited for obtaining a high-translucency and high-strength zirconia sintered body, and a high-density and uniform pre-sintered body. The invention also provides methods of production of such a granule and green compact. The present invention relates to a granule comprising zirconia, a stabilizing agent capable of preventing a phase transformation of zirconia, and a binder, the granule having a compression ratio R of 0.46 to 0.53 as calculated by the formula (1) below when tapped and filled into a columnar die in compliance with JIS R 1628:1997, and compressed by uniaxial pressing at a rate of 1 mm/s to 33 MPa, The present invention provides a granule and green compact suited for obtaining a high-translucency and high-strength zirconia sintered body, and a high-density and uniform pre-sintered body. The invention also provides methods of production of such a granule and green compact. The present invention relates to a granule comprising zirconia, a stabilizing agent capable of preventing a phase transformation of zirconia, and a binder, the granule having a compression ratio R of 0.46 to 0.53 as calculated by the formula (1) below when tapped and filled into a columnar die in compliance with JIS R 1628:1997, and compressed by uniaxial pressing at a rate of 1 mm/s to 33 MPa, R=(H−D)/H  (1) The present invention provides a granule and green compact suited for obtaining a high-translucency and high-strength zirconia sintered body, and a high-density and uniform pre-sintered body. The invention also provides methods of production of such a granule and green compact. The present invention relates to a granule comprising zirconia, a stabilizing agent capable of preventing a phase transformation of zirconia, and a binder, the granule having a compression ratio R of 0.46 to 0.53 as calculated by the formula (1) below when tapped and filled into a columnar die in compliance with JIS R 1628:1997, and compressed by uniaxial pressing at a rate of 1 mm/s to 33 MPa, R=(H−D)/H  (1) wherein H represents a height of the granule tapped and filled into the columnar die before applying pressure, and D represents an amount of strain up to 33 MPa.

Classes IPC  ?

• C01G 25/02 - Oxydes
• C01G 1/02 - Oxydes

Abrégé

The present invention provides a dental ceramic coloring solution with which the pink shade needed for dental use can be imparted while reducing a decrease in the strength of a dental ceramic. The present invention relates to a coloring solution for coloring a dental ceramic, comprising a coloring component and a solvent, wherein the coloring component comprises an Er component and a Co component.

Classes IPC  ?

• C04B 41/50 - Revêtement ou imprégnation avec des substances inorganiques
• C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
• C04B 41/46 - Revêtement ou imprégnation avec des substances organiques
• C04B 41/85 - Revêtement ou imprégnation avec des substances inorganiques
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/78 - Pigments

Abrégé

A composition may include granules in which zirconia particles are aggregated. The granules may have an average circularity of 0.81 or greater based on a projected image. The zirconia crystal system of the zirconia particles may be 20% or more monoclinic. An angle of repose of the composition, measured in accordance with JIS R9301-2-2, may be in a range of from 20 degrees to 35 degrees.

Classes IPC  ?

• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique
• C04B 35/486 - Céramiques fines
• C01G 25/02 - Oxydes

Abrégé

The present invention provides a dental glass composition that has excellent fixability to dental prostheses, and that does not need firing and fixing to layer color or enable a build-up of porcelain thereon. The present invention relates to a dental glass composition comprising a glass powder (A) and a wax component (B). The glass powder (A) has an average particle diameter of preferably 0.05 μm to 50 μm. The wax component (B) has a boiling point of preferably 400° C. or less.

Classes IPC  ?

• C03C 8/16 - Mélanges de frittes vitreuses contenant des additifs, p. ex. des agents opacifiants, des colorants, des agents de broyage agents vecteurs ou de suspension, p. ex. suspension
• A61C 13/08 - Dents artificiellesFabrication de dents artificielles
• A61K 6/20 - Revêtements de protection pour dents naturelles ou artificielles, p. ex. scellements, revêtements colorés ou vernis
• A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
• A61K 6/77 - Verre
• A61K 6/836 - Verre
• A61K 6/884 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des résines naturelles ou synthétiques
• C03C 4/00 - Compositions pour verres ayant des propriétés particulières

Abrégé

The present invention provides a paste-like dental glass composition having good ease of handling due to a reduction in paste runniness while enabling accurate shade adjustments with no discoloration to hues such as black or grey after firing. The present invention relates to a paste-like dental glass composition comprising a glass powder (A), and an organic solvent (B) having two or less hydroxyl groups within the molecule and a viscosity at 20° C. of 2,500 mPa·s or less, and being essentially free of an organic compound having three or more hydroxyl groups within the molecule.

Classes IPC  ?

• A61K 6/836 - Verre
• A61K 6/15 - Compositions caractérisées par leurs propriétés physiques

Abrégé

The present invention provides a zirconia pre-sintered body that exhibits suitable shade, translucency, and strength with short firing. The present invention relates to a zirconia pre-sintered body comprising a multilayer structure including at least three layers containing zirconia and a stabilizer capable of reducing a phase transformation of zirconia, the zirconia comprising predominantly monoclinic crystal system, the multilayer structure including at least two layers that differ from one another in the content of the stabilizer relative to the total mole of the zirconia and the stabilizer, the multilayer structure including at least two layers having substantially the same stabilizer content relative to the total mole of the zirconia and the stabilizer, the zirconia pre-sintered body containing a color component in all of the layers having substantially the same stabilizer content, and the layers having substantially the same stabilizer content differing from one another in the composition of the color component.

Classes IPC  ?

• C04B 35/488 - Composites
• C04B 35/64 - Procédés de cuisson ou de frittage
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique
• A61C 13/08 - Dents artificiellesFabrication de dents artificielles

Abrégé

The present invention provides a zirconia sintered body that has high strength and is machinable. The present invention relates to a zirconia sintered body comprising zirconia, a stabilizing agent capable of preventing a phase transformation of zirconia, a sintering aid, and a needle-shaped metal oxide. Preferably, the sintering aid comprises niobium pentoxide, and the content of the niobium pentoxide is 5 to 15 parts by mass with respect to total 100 parts by mass of the zirconia and the stabilizing agent. Preferably, the stabilizing agent comprises yttria, and the content of the yttria is 2.5 to 10 mol % with respect to the total number of moles of the zirconia and the yttria.

Classes IPC  ?

• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/824 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de métaux de transition
• A61K 6/17 - Taille des particules

Abrégé

The present invention pertains to a porcelain paste for dentistry containing a positive-ion surfactant (A), a glass powder (B), and alcohol (C).

Classes IPC  ?

• A61K 6/836 - Verre
• A61K 6/802 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques

Abrégé

The present invention provides a zirconia pre-sintered body having excellent machinability and having a low probability of pillar fracture or chipping during milling. A method of production of such a zirconia pre-sintered body is also provided. The present invention relates to a zirconia pre-sintered body comprising zirconia, and a stabilizer capable of reducing a phase transformation of zirconia, the content of the stabilizer being 3 to 8 mol % relative to the total mole of the zirconia and the stabilizer, at least a part of the stabilizer being not dissolved in zirconia as a solid solution, and the zirconia pre-sintered body having a Vickers hardness of 65 to 135 HV 5/30 as measured in compliance with JIS Z 2244:2009.

Classes IPC  ?

• C04B 35/486 - Céramiques fines
• C04B 35/64 - Procédés de cuisson ou de frittage

Abrégé

The present invention provides a dental ceramic coloring liquid with which a decrease in the mechanical strength of a dental ceramic after sintering can be reduced, and that can impart masking properties while having good preservation stability. The present invention relates to a dental ceramic coloring liquid comprising an organosilicon compound. The organosilicon compound is preferably hydrophilic. The organosilicon compound is preferably a silicone compound. The organosilicon compound is preferably an alkylsilane compound.

Classes IPC  ?

• A61K 6/896 - Composés polyorganosiliciés
• A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
• A61K 6/65 - Colorants

Abrégé

An object of the present invention is to provide a dental composition that shows desirable adhesive properties to tooth structure, and that has desirable mechanical strength in the form of a cured product while having low polymerization shrinkage stress. The present invention relates to a dental composition comprising: a (meth)acrylic compound (A); a monomer (B) having an acidic group and a molecular weight of less than 5,000; a monomer (C) having no acidic group and having a molecular weight of less than 5,000; and a polymerization initiator (D), the (meth)acrylic compound (A) having an average molecular weight of 5,000 to 50,000, and an average molecular weight of 1,250 or more and less than 20,000 per (meth)acryl group.

Classes IPC  ?

• A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
• A61K 6/62 - Initiateurs radicalaires photochimiques

Abrégé

2225252225252225255 is 1-9 mol%, and an ion or an element derived from a capping agent is contained.

Classes IPC  ?

• C04B 35/488 - Composites
• A61C 5/70 - Couronnes dentairesLeur fabrication
• A61C 13/083 - Dents en porcelaine ou en céramique
• C04B 35/645 - Frittage sous pression