Abrégé

A modular layered dental implant, comprising: a module layer (100), which comprises a plurality of module units (110, 120), all the module units (110, 120) being stacked in a vertical direction, every two vertically adjacent module units (110, 120) being detachably connected to each other, an outer side wall of at least one of the module units (110) being provided with a plurality of accommodating holes (111), and an outer side wall of at least one of the module units (120) being provided with a first external thread (121); and a bottom layer (200), which is detachably connected to the bottom of the module layer (100), an outer side wall of the bottom layer (200) being provided with a second external thread (210). In the modular layered dental implant, the module unit on the top layer is removed by means of a restoration tool and is cleaned and replaced, such that the problem of peri-implant inflammation can be solved; and for patients with an alveolar bone defect, the module unit on the top layer with a suitable height and diameter can be selected for replacement, thereby realizing individualized restoration.

Classes IPC  ?

• 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

Abrégé

A micro-leakage testing method for a dental implant system applicable to the field of dental implants. A dental implant system (300) is tested by using a test device, and the micro-leakage testing method for a dental implant system comprises: step 1, injecting a dye solution into an inner cavity (311) of the dental implant system (300); step 2, inserting an abutment (320) into the inner cavity (311), and allowing a central screw (330) to penetrate through a screw channel (321) and then to be connected to the inner cavity (311); step 3, mounting an implant (310) on a dental implant system clamp (100) of the test device, mounting the dental implant system clamp (100) in an accommodation space (210), and adding water into the accommodation space (210) to immerse the implant (310) and the abutment (320); step 4, measuring the mass concentration of the dye solution in the water by using a spectrophotometer, and recording the mass concentration as b; step 5, the test device performing fatigue test on the dental implant system (300); and step 6, measuring the mass concentration of the dye solution in the water by using the spectrophotometer, and recording the mass concentration as c. According to the micro-leakage testing method for the dental implant system, the leakage condition of a connection interface of the dental implant (310) and the abutment (320) under the action of continuously circulating occlusal force can be tested.

Classes IPC  ?

• G01N 21/31 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique
• G01N 21/01 - Dispositions ou appareils pour faciliter la recherche optique
• 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

Abrégé

A dental scanning rod, comprising: a working component (100), the bottom of the working component (100) being provided with a mounting hole (110); the inner wall of the mounting hole (110) being provided with at least one plane; the inner wall of the mounting hole (110) being provided with first clamping structures (111); the top of the working component (100) being provided with a connecting hole (120); the connecting hole (120) extending downwards and being communicated with the mounting hole (110); a connecting component (200), the top of the connecting component (200) being provide with a mounting base (210); the shape of the mounting base (210) matching the shape of the mounting hole (110); the mounting base (210) being inserted into the mounting hole (110) from bottom to top; the side wall of the mounting base (210) being provided with second clamping structures (220); the second clamping structures (220) being fitted to the first clamping structures (111) in a matched mode; an assembling hole (230) passing through the mounting base (210); and a connecting screw (300) sequentially passing through the connecting hole (120), the mounting hole (110), and the assembling hole (230) from top to bottom, the bottom end of the connecting screw (300) extending out of the connecting component (200). According to the dental scanning rod, after the connecting component (200) and the working component (100) are locked to an implant body by the connecting screw (300), the connecting component (200) is accurately assembled to the working component (100), thereby protecting the working component (100) from being damaged. The dental scanning rod can be applied to dental implantation.

Classes IPC  ?

• 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

Abrégé

Disclosed are a repairing titanium mesh for use in alveolar bone grafting and a manufacturing method for the mesh. The repairing titanium mesh comprises a rectangular porous part. The porous part is provided with a conical hole running through the upper and lower surfaces, a first through hole running through the front and rear surfaces, and a second through hole running through the left and right surfaces in communication with each other. At least two semi-cylindrical protrusions are provided on the right surface of the porous part. The height of the protrusions is equal to the height of the porous part, the sum of the diameter is less than the width of the porous part, the upper surfaces of the protrusions are located on a same plane with the upper plane of the porous part, and the protrusions are provided with a third through hole running through the upper surface and the lower surface. The present invention employs a three-dimensional channel design, and the holes are in communication with each other, thus ensuring the smoothness of blood supply. The present invention employs a 3D printing manufacturing process for processing, is convenient, quick, and inexpensive, combines the specific circumstances of a patient to employ a personalized design, is highly patient-friendly, and allows an easily operable surgical installation.

Classes IPC  ?

• 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 13/00 - Prothèses dentairesLeurs procédés de fabrication
• B33Y 80/00 - Produits obtenus par fabrication additive

Abrégé

A personalized alveolar bone-repairing prosthesis capable of being directly implanted, comprising a filling body (001), a left wing part, and a right wing part. A retention plate (002) which extends to the left is provided on the left wing part, a retention plate (002) which extends to the right is provided on the right wing part, and the filling body (001) is a 3D-printed metal porous body; an implant mounting end face is arranged on the upper end of the filling body (001), and at least one implant abutment (003) is arranged on the mounting end face. The initial stability of the repairing prosthesis is ensured by a mode of combining the implant abutment (003) with the filling body (001), and moreover, a mode of combining a dental implant and a bone is replaced by a mechanically binding fixing mode of the filling body (001) and the implant abutment (003), so that the stability of the effect of dental implantation is ensured.

Classes IPC  ?

• 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 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61F 2/28 - Os

Abrégé

A customized multi-hole dental bridge based on an additive or subtractive processing mode and a manufacturing method therefor. The manufacturing method comprises the steps of: 1) obtaining an oral environment model and a scan post model to obtain implant site connector data; 2) making a dental bridge STL digital model; 3) forming multiple holes in the dental bridge STL digital model; 4) converting the dental bridge STL digital model obtained in step 3 and outputting same as an STP solid model; 5) performing finite element analysis on the STP solid model; 6) molding the STP solid model in step 5 by means of metal 3D printing to obtain a semi-finished dental bridge product; and 7) performing precision machining on an end face and an inner taper hole of an implant site connector of the semi-finished dental bridge product by using a CNC machine tool, and then removing a positioning support rod to obtain a customized multi-hole dental bridge. Additive or subtractive manufacturing of a dental bridge is implemented by means of metal 3D printing and CNC cutting, so that the dental bridge effectively reduces the elastic modulus thereof while meeting the strength requirements, and also implements the high precision machining of the implant site connector of the dental bridge.

Classes IPC  ?

• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication

Abrégé

A personalized bone drill realizing reaming by means of high-frequency vibration, comprising a drill body (1), a vibration shaft (2), a drill cover (3), and a personalized drill bit (4). A vibration shaft positioning hole is provided in the axis of the drill body (1); a swing part movable cavity is provided at the bottom of the drill body (1); the vibration shaft (2) consists of a shaft body (21) and an eccentric swing part (22); the shaft body (21) is matched with the vibration shaft positioning hole, and the length of the shaft body is greater than the depth of the vibration shaft positioning hole; the upper end of the shaft body (21) is provided with a connecting port (23) in linkage with an external power source; the eccentric swing part (22) is positioned in the swing part movable cavity and is fixedly connected to the bottom of the shaft body (21); the drill cover (3) is in the shape of a cone with big end up; a protruding platform (31) for mounting the personalized drill bit (4) is provided at the bottom end of the drill cover (3). The personalized bone drill bores a hole by means of vibration, alveolar bone mass of a patient is retained as much as possible, injury of the patient is reduced, and the rehabilitation period of the patient is shortened. The eccentric swing part (22) rotates to promote the whole bone drill to vibrate, and the personalized bone drill is simple, stable, and reliable in structure.

Classes IPC  ?

• A61C 3/12 - Scies à dents
• A61C 3/03 - Instruments fonctionnant par vibration

Abrégé

A dental implantation apparatus capable of implementing vibration reduction by electromagnetic suspension. The dental implantation apparatus comprises a housing (1), a housing cover (2), a central body (3), a vibrating shaft (4), a driving element, and a central body cover (6). The dental implantation apparatus is safe and efficient, and a dental implant implanted by said apparatus has better initial stability. For vibration-based interference implantation, only a small implanting hole needs to be prepared, the alveolar bone mass of a patient is maintained as much as possible, injury of the patient is reduced, and the recovery period of the patient is shortened. An eccentric swing part (42) can promote the entire structure to vibrate during rotation due to that the center of gravity of the swing part is distant from the center of rotation, and the design is easy, stable, and reliable. Due to the integrated design of a shaft body (41) and the eccentric swing part (42), the structure is compact, the occurrence of violent shake and collision is reduced, and the assembling operation is facilitated. The apparatus can be divided into multiple segments for manufacturing and assembly, so that the assembly is facilitated, and the costs are reduced.

Classes IPC  ?

• 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

Abrégé

A porous dental implant capable of degrading so as to release magnesium ions, comprising an implant base (1) printed with SLM technology from a pure titanium material. A porous structure is provided inside of the planting base (1), and spherical holes (a2) or thread grooves (b2) are provided on the surface of the planting base (1). The spherical holes (a2) or the thread grooves (b2) are filled with degradable layers (a3, b3), and the degradable layers (a3, b3) are formed by means of instantaneous melt adhesion of magnesium particles. The degradable layers (a3, b3) inlaid in the surface of the porous dental implant are melted by means of laser heating to achieve adhesion, and can cover the rough surface of the pure titanium implant base printed by SLM, and thus the processing requirements of SLM printing are reduced. The elastic modulus and yield strength of the degradable layers (a3, b3) are close to those of the bone tissue, so that the porous dental implant will not suffer from stress shielding during the early stage of planting, and magnesium ions contained in the degradable layers (a3, b3) can promote cell growth and accelerate the bone binding process.

Classes IPC  ?

• 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
• A61L 27/50 - Matériaux caractérisés par leur fonction ou leurs propriétés physiques

Abrégé

A porous dental implant having a surface inlaid with a degradable layer and a preparation method therefor, the preparation method comprising: (1) by means of selective laser melting (SLM) technology, using pure titanium to print an implant pile (1), a surface thereof being provided with a spherical hole (a2) or a threaded groove (b2); (2) finishing an internal thread and a hexagonal connecting groove of the implant pile (1) by means of mechanical machining; (3) placing metal magnesium particles having a melting point that is lower than that of pure titanium into the spherical hole (a2) or the threaded groove (b2), heating the magnesium particles by using laser irradiation such that the temperature thereof immediately increases to the melting point thus enabling the molten liquid to quickly adhere to the spherical hole (a2) or the threaded groove (b2) so as to form a degradable layer (a3), and obtaining a dental implant after the implant pile (1) is cooled. The degradable layer of the dental implant may cover a rough surface of the SLM printed pure titanium implant pile well, and reduce the processing requirements of SLM printing; in addition, the elastic modulus and yield strength of magnesium are close to that of bone tissue, thus preventing the problem of stress shielding; moreover, magnesium has biological activity, and magnesium ions may promote cell growth.

Classes IPC  ?

• A61L 27/50 - Matériaux caractérisés par leur fonction ou leurs propriétés physiques

Abrégé

A surface treatment process for a trans-gingival portion of a dental implant, comprising the steps of: performing an electrochemical surface treatment process on a trans-gingival portion of a dental implant; treating the segment of the dental implant implanted in a bone by using a conventional sandblasting-acid etching composite process; and performing electrochemical anodic oxidation and electrochemical deposition on a trans-gingival segment of the dental implant subjected to the sandblasting-acid etching treatment. The construction method can apply a surface treatment method combining a physical method with a chemical method in the field of oral implants, and features simple equipment, ease of operation, low production costs, and applicability to industrial production. The method can further induce the penetration of epithelial cells and fibroblast pseudopods and form tight interlocking interpenetration, thereby improving the strength of binding of surrounding fibrous tissue or collagen fibers to the surface of the implant; surface microstructure design of the trans-gingival segment can avoid the descending of epithelial tissue and improve the binding of the fibrous connective tissue to the implant, thereby enhancing the biological sealing property of the trans-gingival portion of the implant, reducing the adhesion of plaque, and reducing the probability of occurrence of peri-implantitis.

Classes IPC  ?

• 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

Abrégé

A dental implant having micro-pattern design on the surface and a construction method therefor. The construction method can apply a surface treatment method combining a physical method with a chemical method in the field of oral implants, and features simple equipment, ease of operation, low production costs, and applicability to industrial production. The method can also promote the proliferation and differentiation of osteoblasts, and can further induce calcium phosphate mineralization, thereby improving the formation of surrounding bone tissue and enhancing the binding strength of the surface of the implant.

Classes IPC  ?

• A61C 13/01 - Plaques-bases
• B23K 26/36 - Enlèvement de matière
• A61L 27/06 - Titane ou alliages de titane
• C23F 1/02 - Gravure locale

Abrégé

A dental implant with a biodegradable protective layer. The dental implant comprises an implant body and a central screw. The implant body comprises an abutment (a1) and an implant fixture (a2). The implant body is internally provided with a positioning hole (a4) matching the central screw. The implant fixture (a2) comprises a permeation section (a21). The permeation section (a21) is a porous component. An outer surface of the permeation section (a21) is covered with a protective layer (a22). Pores of the permeation section (a21) are connected to the positioning hole (a4). The protective layer (a22) is formed by curing a biodegradable coating. The biodegradable coating is one or more of a polylactic acid, a polyglycolic acid, a polycaprolactone, or a poly(lactic-co-glycolic acid). The porous component is used to manufacture the permeation section (a21) of the dental implant and the protective layer (a22) is used to seal the pores at the outer surface of the permeation section (a21). After the dental implant is implanted in a patient, a bactericidal solution or a pharmaceutical solution that promotes peri-implant bone healing can be injected through the positioning hole (a4) into the permeation section (a21). When the protective layer (a22) at the outer surface of the permeation section (a21) degrades, the pharmaceutical solution percolates slowly, achieving continuous medicament delivery, so as to achieve the goal of higher success rates for rapid dental implantation.

Classes IPC  ?

• 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