The present invention relates to an additive manufacturing apparatus for additively manufacturing a component, including: a resin vat unit which includes: a reservoir for storing UV light photocurable resin; and a UV-transparent window at the bottom of the reservoir, the UV-transparent window includes a UV-transparent plate and a UV-transparent anti-adhesive flexible foil; a projection unit for projecting UV light through the UV-transparent window into the reservoir; a movable building platform having a surface onto which the component can be formed through layerwise curing of said resin. The UV-transparent window further includes: an optical means which is adapted to diffuse the projected UV light towards the building platform into a region (R) where the UV light photocurable resin is to be layerwise cured, the optical means is arranged in the light path of the projected UV light.
Described herein is a dental composition containing a polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit. The polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit is obtained without use of organo-metal catalysts and isocyanates and by a reaction between an at least one component A having at least one cyclic carbonate group with an at least one component B having at least one of primary amine functional group and secondary amine functional group. The present disclosure relates to use of the polymerizable compound having at least one optionally derivatized β-hydroxy urethane unit for the preparation of a dental composition, in particular a dental composite, a glass ionomer, a dental cement, a dental sealant, and a dental adhesive.
The present invention relates to an additive manufacturing apparatus for additively manufacturing a component including: a resin vat unit which includes: a reservoir for storing UV-light photocurable resin; and a frame assembly holding a UV-transparent window at the bottom of the reservoir, said UV-transparent window includes a UV-transparent plate and a UV-transparent anti-adhesive flexible foil; a projection unit for projecting UV-light through the UV-transparent window into the reservoir; and a movable building platform having a surface onto which said component can be formed through layerwise curing of said resin. The UV-transparent window further includes a removable frame-like spacer foil which has a predetermined thickness and can be removably mounted by means of the frame assembly between the UV-transparent plate and the UV-transparent anti-adhesive flexible foil in order to create a plate-foil air gap; and at least one air hole for communicating said plate-foil air gap with the atmosphere.
Techniques and apparatuses for detecting defects on at least one tooth in the dentin or tooth enamel area that include providing an intra-oral camera that includes a confined light injector; projecting a spatially confined light in a first direction via the confined light injector at an illumination point of the at least one tooth; recording, by an image sensor, one or more surface light distribution images received via captured light that is backscattered from the tooth; and computing, by a tooth defect detection module, a defect condition of the at least one tooth by classifying the one or more surface light distribution images based on computation of light distribution differences in the one or more surface light distribution images caused by defective tooth material.
Light is projected from a light source in a first direction towards a tooth. The light source generates at least infrared light in the wavelength range of 950 nm to 2500 nm. A colloidal quantum dot (CQD) sensor records one or more surface light distribution images produced at the surface of the tooth by the projected light and the one or more surface light distribution images are used to compute a defect condition of the tooth.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
6.
BONE GRAFT COMPOSITION BASED ON GLUCURONIC ACID-1-PHOSPHATE
A composition comprising glucuronic acid- 1 -phosphate, tetracalcium phosphate, cross-linked collagen and water. The composition has preferably the weight ratio Liquid/Powder of 0.18. The composition is used in producing a bone graft and in other dental and medical applications. A process for producing the composition.
A61L 27/46 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with phosphorus-containing inorganic fillers
A61L 27/54 - Biologically active materials, e.g. therapeutic substances
A61L 27/58 - Materials at least partially resorbable by the body
C08L 89/06 - Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin
A61K 31/7012 - Compounds having a free or esterified carboxyl group attached, directly or through a carbon chain, to a carbon atom of the saccharide radical, e.g. glucuronic acid, neuraminic acid
7.
DEVICE FOR RECEIVING AND FIXING THE COMPONENT CARRIER OF A 3D PRINTER BY UTILITZING EXISTING AXES OF MOTION
A 3D printer comprising a resin vat, a component carrier, a transport box for depositing the component carrier, a transport device for removing the component carrier from the transport box and transporting it into the resin vat, and for moving the component carrier downward and upward in the resin vat The transport device has translatory axes in the vertical and horizontal directions, each of which can be driven independently by a motor, the transport device having a locking device that detachably connects the component carrier. The locking device, during the downward movement along the vertical translatory axis, reaches a specific position (P) by the drive of the respective motor, at which a stop located on the vertical translatory axis sets a coupling element in motion. A spring-loaded locking pin arranged in contact with the coupling element is immersed in a bayonet opening of the component carrier by the movement. The immersed locking pin can be brought into a locking position in the bayonet opening via the horizontal translatory axis.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
8.
Dental Magnetic Resonance Imaging in the Presence of Metallic Materials
Techniques are described for carrying out a dental magnetic resonance imaging examination of a field-of-view within a subject, the field-of-view including a dental area of the subject. The techniques include determining whether a metallic object is present within or near the field-of-view, initiating a standard examination workflow if it has been determined that no metallic object is present within or near the field-of-view, and initiating a modified examination workflow that is different from the standard examination workflow if it has been determined that a metallic object is present within or near the field-of-view, and carrying out the standard examination workflow or the modified examination workflow.
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
9.
AUTOMATIC GENERATION OF A REPROJECTION PANORAMIC VIEW FROM DENTAL DVT VOLUMES USING MACHINE LEARNING METHODS
The present invention relates to a method for automatically generating a projection panoramic view (RPV) from a dental DVT volume of a patient, comprising the steps of; (S1) localizing dental relevant anatomical structures in the DVT volume by using a machine learning method; (S2) automatically placing a guide curve by optimizing it based on the position of the localized dental relevant anatomical structures; (S3) defining a projection region of the reprojection panoramic view using the placed guide curve without manual steps in the DVT volume so that the localized dental relevant anatomical structures are encompassed; (S4) creating the reprojection panoramic view by reprojecting the DVT volume in the defined projection region.
The present invention relates to a computer implemented method of generating a final panoramic image (13) of a patient, comprising the steps of: acquiring (S1) a digital 3D model (14) of a dental condition of the patient which describes the 3D surface of the teeth and the gingiva; acquiring (S2) two-dimensional x-ray projection images (15) by rotating an x-ray detector (4) and an x-ray source (3) along a trajectory around the patient's head; setting (S3) an initial panoramic layer (16) of the patient to be imaged relative to the trajectory; reconstructing (S4) an initial panoramic image (17) based on the initial panoramic layer (16) and the x-ray projection images (15); setting (S5) a plurality of reference points (P1, P2) on the initial panoramic image (17), and finding the corresponding plurality of points (P1`, P2`) on the digital 3D model (14); selecting (S6) a plurality of points (P1``, P2``) on the initial panoramic layer (16) which correspond to the plurality of reference points (P1, P2) set on the initial panoramic image (17); finding (S7) a mapping function (F) that maps the plurality of points (P1``, P2``) selected on the initial panoramic layer (16) to the corresponding plurality of points (P1`, P2`) found on the digital 3D model (14); deforming (S8) the initial panoramic layer (16) in accordance with the mapping function (F) to obtain a final panoramic layer (18); reconstructing (S9) the final panoramic image (13) based on the x-ray projection images (15) and the final panoramic layer (18); displaying the final panoramic image (13).
G06T 3/4038 - Image mosaicing, e.g. composing plane images from plane sub-images
A61B 6/46 - Arrangements for interfacing with the operator or the patient
A61B 6/51 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications for dentistry
A61B 6/02 - Arrangements for diagnosis sequentially in different planesStereoscopic radiation diagnosis
11.
BIFUNCTIONAL AND POLYFUNCTIONAL COINITIATORS IN DENTAL COMPOSITIONS
A dental composition comprising
(a) a polymerizable monomer; and
(b) an initiator system comprising
(b-1) a sensitizer or an oxidizing agent of a redox initiator system; and
(b-2) a coinitiator of the following formula (I):
A dental composition comprising
(a) a polymerizable monomer; and
(b) an initiator system comprising
(b-1) a sensitizer or an oxidizing agent of a redox initiator system; and
(b-2) a coinitiator of the following formula (I):
Q-X (I)
wherein Q and X are as defined in claim 1.
A method for producing a urinary catheter comprises the steps: providing a tubular catheter shaft having an axially extending lumen therein; thermoforming an end of the tubular catheter shaft into a closed end; inserting said closed end of the tubular catheter shaft into an injection mold cavity; and injecting thermoplastic polymer material into the mold cavity to form a tip on the thermoformed end of the tubular catheter shaft. Hereby, a very effective method is obtained, forming securely attached tips. Alternatively, an end of the tubular catheter shaft with a non-closed opening may be inserted into the injection mold cavity; and thermoplastic polymer material be injected into the mold cavity to form a tip on the end of the tubular catheter shaft, whereby the injecting is controlled so that a limited amount of thermoplastic polymer enters into the lumen.
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
A composition comprising a compound of the Formula (Ia), tetracalcium phosphate, a cross-linked collagen and water. The composition has preferably the Liquid/Powder ratio of 0.21. The composition is for use in producing a bone graft and for use in other dental and medical applications. A process for producing the composition.
A61L 27/46 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with phosphorus-containing inorganic fillers
A61L 27/54 - Biologically active materials, e.g. therapeutic substances
A61L 27/58 - Materials at least partially resorbable by the body
C08L 89/06 - Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin
A61K 31/7012 - Compounds having a free or esterified carboxyl group attached, directly or through a carbon chain, to a carbon atom of the saccharide radical, e.g. glucuronic acid, neuraminic acid
14.
SYSTEMS, APPARATUSES, AND METHODS FOR REAL-TIME COLLABORATION WITH A GRAPHICAL RENDERING PROGRAM
Systems, apparatuses, and methods are provided enabling real-time collaboration with a graphical rendering program. A server computer executes a graphical rendering program that determines an application state that defines a visual object. Rendering data is generated for one or more views of the visual object based on the application state. The rendering data is transmitted to client computer devices connected to the server such that the client computer devices can display the views of the visual object. As the application state defining the visual object is determined on the server computer, displays of the visual object on all client computer devices can be updated in real-time.
Systems, apparatuses, and methods are provided enabling real-time collaboration with a graphical rendering program. A server computer executes a graphical rendering program that determines an application state that defines a visual object. Rendering data is generated for one or more views of the visual object based on the application state. The rendering data is transmitted to client computer devices connected to the server such that the client computer devices can display the views of the visual object. As the application state defining the visual object is determined on the server computer, displays of the visual object on all client computer devices can be updated in real-time.
Disclosed herein is an obturator and methods of manufacturing an obturator for filling an endodontically prepared root canal. The obturator comprises an elongated carrier having a distal end, proximal end, and working portion with a combination of filler materials having multiple viscosities coated on the working portion.
A61C 5/50 - Implements for filling root canalsMethods or instruments for medication of tooth nerve channels
B29C 69/02 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniquesApparatus therefor of moulding techniques only
B29K 19/00 - Use of rubber not provided for in a single one of main groups , as moulding material
B29K 105/00 - Condition, form or state of moulded material
METHOD AND SYSTEM FOR GENERATING DENTAL PANORAMIC IMAGES WITH SHARPENED DEPICTION OF CLINICALLY RELEVANT, PATIENT-SPECIFIC PRE-SELECTED ANATOMICAL STRUCTURES
Reconstructing a panoramic image of a patient's dental regions, including: providing at least one initial panoramic image reconstructed by using a plurality of projectional images of the patient and an initial layer including the mapping points corresponding to the patient's dental regions, to be sharply depicted in the initial panoramic image further including: detecting one or more clinically relevant patient-specific pre-selected anatomical structures in the initial panoramic; computing, using the anatomical data and the initial panoramic image, a new layer which includes the clinically relevant patient-specific pre-selected anatomical structure to provide a sharper depiction of the clinically relevant patient-specific pre-selected anatomical structures in a new panoramic image to be reconstructed compared to the depiction of the clinically relevant patient-specific pre-selected anatomical structure in the initial panoramic image; and reconstructing the new panoramic image using the plurality of projectional images of the patient and the computed new layer.
An extraoral dental X-ray apparatus for imaging of a patient in the dental region including: a radiator array having at least two individual radiators each for emitting X-rays, and offset at least along a predetermined direction (z); and an X-ray detector for at least partially detecting the X-rays emitted by the individual radiators, the radiator array and the X-ray detector being rotatably arranged about an axis parallel to said predetermined direction, further including a control device for separately controlling the individual radiators, the control device being configured such that the emitted X-rays of the at least two individual radiators differ in intensity and/or spectral distribution of the X-rays to effect an intensity and/or spectral distribution which can be varied along the predetermined direction. The control device can adaptively adapt the intensity and/or spectral distribution to the anatomy of the patient.
A61B 6/51 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications for dentistry
A61B 6/40 - Arrangements for generating radiation specially adapted for radiation diagnosis
19.
COMPUTER-IMPLEMENTED METHOD FOR CORRECTING ARTEFACTS DUE TO ELECTROMAGNETIC DISTURBANCES CAUSED IN X-RAY PROJECTION IMAGES
The present invention relates to computer-implemented methods for correcting artefacts in x-ray projection images caused by electromagnetic disturbances on an x-ray detector (4) and for generating a corrected three-dimensional volume image or a corrected tomosynthesis based image or a corrected cephalometric image of a patient based on the artefact corrected projection images.
A dental restoration (1), wherein the dental restoration comprises zirconium dioxide stabilized with at least one stabilizing oxide, wherein the dental restoration (1) comprises a dentin (3), an incisal (4) and at least one transition region (5), wherein the dentin (3) extends within the incisal (4), wherein the dentin (3) and the incisal (4)) comprise each at least one shading oxide of a metal element, wherein the dental restoration is produced from a blank (1'), wherein the blank comprises a core region (3'), a shell region (4'), wherein the core region (3') and the shell region (4') comprise each at least one shading oxide of a metal element, wherein in at least one horizontal plane (9) of the dental restoration (1) there are at least three sections of different composition, translucency, chromaticity and mechanical properties.
A blank (1) for use in preparing a dental restoration (2) such as a dental framework, in particular a dental bridge, the blank comprises at least one shading oxide of at least one metal element, wherein the blank comprises a core region (3), a shell region (4) and at least one transition region selected from the group comprising (9a), (9b), (9c) and (9d), wherein the core region (3) comprises at least one basic body having a substantially conical shape (5) and at least one basic body having a substantially trapezoidal shape (6), wherein the at least one basic body having a substantially conical shape (5) and the at least one basic body having a substantially trapezoidal shape (6) are merged one into another.
An intelligent restoration proposal including using an input resource to segment a 3D jaw model to obtain a segmented missing or unhealthy teeth and omitting the segmented missing or unhealthy teeth from the 3D jaw model to obtain a modified 3D jaw model. The modified 3D jaw model is used as input to a restoration proposal module to propose an output restoration. The restoration proposal module is operated as a machine learning engine. The restoration proposal is trained using a database that includes healthy teeth.
G16H 20/30 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
An intelligent restoration proposal including using an input resource to segment a 3D jaw model to obtain a segmented missing or unhealthy teeth and omitting the segmented missing or unhealthy teeth from the 3D jaw model to obtain a modified 3D jaw model. The modified 3D jaw model is used as input to a restoration proposal module to propose an output restoration. The restoration proposal module is operated as a machine learning engine. The restoration proposal is trained using a database that includes healthy teeth.
The present disclosure relates to a dynamic self-adaptive reciprocal motor movement optimized for root canal treatment with endodontic files. A smart motor movement is configured to continuously self-adapt its settings in a smooth manner without sudden drastic motor movement changes. This can be obtained by continuously changing motor parameters in response to instantaneous torque measurements, and also taking into consideration the torque evolution instead of merely reacting to the instantaneous torque imposed on the file.
The present disclosure relates to a dynamic self-adaptive reciprocal motor movement optimized for root canal treatment with endodontic files. A smart motor movement is configured to continuously self-adapt its settings in a smooth manner without sudden drastic motor movement changes. This can be obtained by continuously changing motor parameters in response to instantaneous torque measurements, and also taking into consideration the torque evolution instead of merely reacting to the instantaneous torque imposed on the file.
A computer-implemented method for reconstructing a dental DVT image, including: (S1) providing a sinogram acquired through an extraoral dental X-ray device during a rotation of at least 180 degrees around a patient's head and an initial projection geometry; (S2) geometry calibration through varying the projection geometry and evaluating the varied projection geometry using data consistency constraints derived from a first volume generated from the sinogram using the varied projection geometry in a first reconstruction method, the first reconstruction method using first reconstruction parameters; (S3) generating a final volume with a final reconstruction method using the varied projection geometry and final reconstruction parameters from the sinogram, the first reconstruction parameters of the first reconstruction method and the final reconstruction parameters of the final reconstruction method differing in at least one reconstruction parameter.
A local coil may have a mounting, at least one antenna, and a flexible element. The mounting may position the local coil in a specified position relative to the head of a patient, where the antenna may receive high-frequency signals in a frequency and power range of a magnetic resonance (MR) measurement. The flexible element may at least partly form the local coil on the surface contour of the patient's head. The local coil may at least partly surround the patient's head when the local coil is positioned during use, and a section of the local coil including the antenna can be positioned on the patient's temporomandibular joint using the mounting. The local coil may receive MR signals of the temporomandibular joint using the antenna. A MR device may include the local coil and detect MR signals of a region of the patient using the local coil.
The disclosure relates to a 3D printer including: a vat having an at least partially transparent bottom for receiving liquid photoreactive resin for producing a solid component; a building platform for pulling the component layer by layer out of the vat; a projector for projecting the layer geometry onto the transparent bottom; a transport apparatus for moving the building platform at least downward or upward in the vat; and a receiving apparatus for detachably connecting the building platform to the transport apparatus. The receiving apparatus includes a pivoting device for pivotally holding the building platform and is adapted to abut the underside of the building platform parallelly onto the transparent bottom of the vat when lowered by the transport apparatus. The 3D printer is provided without for the ability to completely block the pivotal movement of the pivotably held building platform.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/236 - Driving means for motion in a direction within the plane of a layer
B29C 64/255 - Enclosures for the building material, e.g. powder containers
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
A dental treatment unit with a water unit including a water collector with an inlet for water and cleaning chemicals and an outlet; a removable instrument hose adapter for plugging into a first slot of the water collector, the instrument hose adapter having one or more openings for connecting instrument hoses. In the plugged-in state the openings are in fluid communication with the outlet. The dental treatment unit also includes; a removable suction hose adapter for plugging into a second slot of the water collector, the suction hose adapter having one or more openings for connecting suction hoses, in the plugged-in state the openings are in fluid communication with the inlet. Further, the instrument hose adapter and the suction hose adapter are designed to be interchangeable with one another, so that each can be optionally plugged into the first slot or into the second slot.
A dental coil comprises a first element and a second element. The first element is composed of a dimensionally stable material and has a recess that is configured to receive at least one of a mouth region or a nose region of a patient when the dental coil is positioned on the jaw region of the patient during use. The second element has a flexible element that is configured to allow the flexible element to take the shape of the jaw region of the patient. The first element and the second element have an antenna configured to receive high-frequency signals in a frequency and power range of a magnetic resonance measurement.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
G01R 33/34 - Constructional details, e.g. resonators
32.
Local Coil and Magnetic Resonance Apparatus Having a Safety Mechanism for Preventing a Collision with a Patient
A local coil including an antenna, base element, holding element, first and second guide mechanisms, and safety mechanism. The antenna receives high-frequency signals in a frequency range and power range of a magnetic resonance measurement and is mechanically connected to the holding element. The base element holds the holding element together with the antenna in a position for use on a diagnostically relevant body region of a patient. The first guide mechanism is mechanically connected to the base element and the holding element and positions the holding element variably relative to the base element. The second guide mechanism is mechanically connected to the holding element and the antenna and positions the antenna variably relative to the holding element. The safety mechanism prevents a collision between the antenna and the patient during a transfer of the holding element from an open position into a closed position using the first guide mechanism.
G01R 33/34 - Constructional details, e.g. resonators
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
G01R 33/28 - Details of apparatus provided for in groups
33.
IMPROVED MOTION ARTIFACT COMPENSATION THROUGH METAL ARTIFACT REDUCTION
A method for geometric calibration of a DVT imaging in the dental field, including: (S1) reconstruction of a first volume from a sinogram with an initial projection geometry; (S2) detection of metal areas in the sinogram; (S3) correction of the metal areas in the sinogram; (S4) reconstruction of a second volume from the corrected sinogram from step (S3) with the initial or a varied projection geometry; (S5) geometrically calibrating by varying the projection geometry and evaluating by a similarity measure between a simulated sinogram of the reconstructed second volume and the sinogram or the corrected sinogram.
A method in which: (a) a patient is positioned in an X-ray device; (b) a 3D scout image with reduced dose and with a predefined volume sizes and a predefined center of rotation is created; (c) on the 3D scout image, a practitioner marks the tooth (d) a software determines, based on the position of the enveloping geometry, the available centers of rotation and calculates, based on reference points of the enveloping geometry, the imaging positions; (e) based on the imaging positions, a center of rotation is selected; (f) the previously determined aperture positions and the detector regions to be irradiated are transmitted; (g) the high-resolution image is reconstructed and the newly acquired high-resolution information is superimposed in the 3D scout image; (h) the practitioner receives the 3D scout image for diagnosis and further use.
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 6/51 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications for dentistry
A61B 6/58 - Testing, adjusting or calibrating thereof
35.
Method and System for Providing a Merged Image of an Oral Cavity
A magnetic resonance system may include a magnetic resonance device, an optical imaging device, and a controller. The controller may control the magnetic resonance device to acquire magnetic resonance image data from an object inside an oral cavity of a patient and/or control the optical imaging device to acquire optical data from the object inside the oral cavity of the patient. The controller (e.g., a processor of the controller) may merge the optical data with the magnetic resonance image data.
Disclosed herein is a dental device for delivering fluid continuously while activated in an endodontic application. The dental device includes a hollow needle having a tip end and a connector portion; and a handle. One end of the handle is configured to be affixed to the connector portion of the hollow needle. The opposite end of the handle is capable of being attached to an endodontic handpiece or a sonic agitator for the activation. The connector portion includes at least one tube connector that is an integral part of the connector portion of the hollow needle or a plurality of openings on the connector portion to accommodate the hollow needle to a connector. The connector is a modular fluid delivery connector which is removable from the needle such that it can be reused.
The present invention relates to a dental impression material adapted to be cured by visible light, comprising a compound having one or more aliphatic unsaturated groups, a compound containing at least one silicon-bonded hydrogen atom and not having more than three hydrogen atoms attached to any one silicon atom, a photoactivatable catalyst component, and a specific initiator component.
A microcapsule for use in the treatment of dental malocclusions/misalignments based on plastic splints or aligners. The microcapsule is a few μm, such as 0.5 μm to 200 μm in size and has a shell made of plastic or glass or ceramic, the shell is filled with a liquid in the interior, and the shell breaks open when it experiences a force and releases the liquid, which can be detected optically, for example, by a color change or illumination with UV light.
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
40.
OPTIMIZATION OF EXTRAORAL PANORAMIC IMAGES THROUGH MODEL-BASED PRIOR KNOWLEDGE OF THE PATIENT'S JAW ARCH FORM
The disclosure relates to a method including: (S1) Determining the jaw arch form as a model-based prior knowledge about the anatomy of a patient based on one or more previous panoramic images or 3D images or one or more optical 3D scans of the patient; (S2) Determining a patient-specific x-ray device imaging trajectory for the panoramic image of the patient; (S3) Performing the imaging on the basis of the determined patient-specific x-ray device imaging trajectory to acquire imaging data; (S4) Adjusting reconstruction parameters according to the determined patient-specific x-ray device imaging trajectory; (S5) Determining the patient-specific focal curve for the panoramic image of the patient to be produced by using the model-based prior knowledge; (S6) Reconstructing the panoramic image using the acquired imaging data, the adjusted reconstruction parameters including the determined patient-specific focal curve, and a layer to be imaged which overlaps with the determined jaw arch
A61B 6/51 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications for dentistry
G06T 15/00 - 3D [Three Dimensional] image rendering
The disclosure relates to a method for processing a digital dental impression including: displaying an image of the digital dental impression; the image including: a shaded region representative of a part of the oral anatomy which is relevant for a dental procedure, and the shaded region being enclosed within a boundary; and an unshaded region representative of a part of the oral anatomy which is not relevant for a dental procedure. The unshaded region and the shaded region are separated from each another by the boundary. The method includes; receiving user input for altering the shaded region and/or unshaded region; detecting completion of a stroke generated by the user input; altering, the shaded region and/or the unshaded region, in response to the stroke completion. The present teachings also relate to a method for processing digital three-dimensional shapes, a dental procedure assisting system, uses and computer software products.
The present invention relates to a method for automatically generating a reprojection panoramic view (RPV) from a dental DVT volume of a patient, which is aligned with the course of the mandibular canal, comprising the following steps; (S1) localization of the mandibular canal, (S2) automatic definition of a projection region of the RPV, which comprises the following sub steps: (S2.1) automatically setting a guide curve in a plane perpendicular to the patient longitudinal axis using the localized mandibular canal; (S2.2) automatically defining a variable or constant thickness profile along the guide curve; (S2.3) Extruding the area defined by guide curve and thickness profile along the patient longitudinal axis; and (S3) generating the RPV by reprojecting the DVT volume in the defined projection region.
Aspects relates to a 3D printer including a vat having an at least partially transparent bottom for receiving liquid photoreactive resin to produce a solid component; a building platform for holding and pulling out the component layer by layer from the vat; a projector for projecting the layer geometry onto the transparent bottom; a transport apparatus for at least downward and upward movement of the building platform in the tray; and a control device for controlling the projector and the transport apparatus. The control device optimally feed forward controls the pull-off movement of the build platform in the 3D printer using a neural network.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
Aspects relate to a method for reconstructing a digital volume tomography (DVT) imaging in the dental field including (S1) estimating the projection geometry from the sinogram of a patient imaging using motion artifact compensation (MAC); (S2) reconstructing a first volume using the estimated projection geometry; (S3) detecting the metal regions in the sinogram and in the first volume using the first volume and the estimated projection geometry; (S4) correcting the metal regions in the sinogram and generating a corrected sinogram; (S5) reconstructing a second volume with the estimated projection geometry and the corrected sinogram; and (S6) correcting the metal regions in the second volume.
The present invention relates to an intraoral X-ray sensor for use with an intraoral X-ray system having an automatic exposure control (AEC) functionality, characterized in that the intraoral X-ray sensor includes an exposure analysis unit, an imaging X-ray detector, and a communication interface, wherein a scout shot or scout video stream received from the imaging X-ray detector is analyzed by the exposure analysis unit in the intraoral X-ray sensor in order to record information on the exposure level of the scout image or video stream and to forward this information by means of the communication interface to a decision unit of the intraoral X-ray system, which is arranged externally to the intraoral X-ray sensor, and adapted for evaluation and decision of further exposures.
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 6/51 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications for dentistry
The present teachings relate to a method for transforming a digital 3D dental model to a 2D dental image, the method including: providing, at least two selected images from the 3D dental model; converting, each of the selected images, to a respective color component of a color model; obtaining, by combining the respective color components, the 2D image in a computer-readable format of the color model. The present teachings also relate to a method of classification of the 2D image, a dental procedure assisting system, uses and computer software products.
An aligner for use in the treatment of malocclusions/misalignments by using force measurement of the aligner on the teeth. The aligner has at least two referencing features located on it in the initial state. The referencing features are of such a size, about or at least 10 micrometers, that they can be accurately detected by a camera or other means. The referencing features are of an optical or topographic kind.
The present invention relates to an esthetic, robust, hybrid, biomimetic and fast grindable and printable dental composition containing an inorganic material in the form of platelets, and an organic material. The invention also relates to dental restorations made from the dental compositions.
Aspects relate to geometric calibration of a DVT imaging, by updating the geometric parameters used in a reconstruction method, in which the updating of the geometric parameters is supported by a first correction method based on machine learning (ML) by using the result of a first correction method as a reference for a second correction method for parameter estimation, and in which the second correction method for parameter estimation involves the measurement data of the DVT imaging, which includes the following steps: (S1) providing the measurement data of the DVT imaging and the geometric parameters; (S2) providing a first volume by applying a reconstruction method to the provided measurement data and the geometric parameters; (S3) providing a corrected volume by applying the first correction method to the first volume; (S4) providing updated geometric parameters by applying the second correction method to the measurement data and the corrected volume.
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 6/51 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications for dentistry
The disclosure relates to a hygiene cover for preventing a contamination of a target surface of a medical imaging device. The hygiene cover is configured for reversibly attaching to the target surface of the medical imaging device and/or a body region of a patient, and the reversible attachment is configured to provide for maintaining a predefined relative position of the hygiene cover to the medical imaging device.
The invention relates to additively manufactured dental devices comprised of a denture base and at least one removable bracing body joined at specific locations to the denture base. The invention also relates to methods of using these additively manufactured dental devices in the fabrication of dental prostheses.
A61C 13/36 - Orienting or positioning of artificial teeth, e.g. determining precise location or attitude therefor
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
The present invention relates to a dental composition comprising at least one polymerization shrinkage mediator. More particularly, the present invention relates to a dental composition comprising at least one polymerizable monomer, at least one polymerization initiator and at least one polymerization shrinkage mediator, wherein the at least one polymerization shrinkage mediator is ethyl 2-phenylacrylate. The present invention also releates to a dental composition comprising the phenylacrylate in a high purity. The dental composition is for production of a dental restoration material, a dental adhesive, a dental cement, a post and core material, an endo-crown material or a pontic in fixed partial dentures. The dental composition is for medical applications.
The present teachings relate to a method for assisting an intraoral scan including providing an intraoral image of a patient, and providing an extraoral image; the extraoral image being representative of the position of an extraoral scanner part. The teaches further include generating, using the intraoral image and the extraoral image, a mapping function correlating the position of the extraoral scanner part with the position of the intraoral scanner part; and computing, using the mapping function, a desired extraoral position of the extraoral scanner part; the desired extraoral position corresponding to a preferable intraoral position of the intraoral scanner part. The present teachings also relate to a system, a device, a use, data, and a storage medium.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
The present invention relates to a dental composition comprising a specific radically polymerizable compound and a radical initiator system. Furthermore, the present invention relates to the specific radically polymerizable compound and its use in a dental composition. The specific radically polymerizable compound of the present invention has an allyl (meth)acrylamide group and a phosphoric acid ester group.
The present invention relates to a dental treatment unit (1) comprising: a chair (2) for seating a patient; a hand-held instrument (6) having an ultrasonic actuator, an electric motor, or turbine for driving a dental tool (7), and a nozzle (8) for ejecting a water spray (9) for moistening or cooling the dental tissue (24) or tooth (25) of the patient being treated; a fluid supply device (16) for suppling pressurized water to the nozzle (8), wherein the fluid supply device (16) has at least one electrically or pneumatically controllable water valve (21) for adjusting the water spray (9) ejected by the said nozzle (8), characterized in that the fluid supply device (16) is adapted to automatically generate a driving signal (S3) having a sequence of pulses that control the water valve (21) in order to turn the water spray (9) sequentially on/off.
The present invention relates to a method for measuring the length of structures displayed in a panoramic image (1a, 1b) of a patient, comprising: (S1) defining a 3D surface (2) describing in space the positions of patient's mapping points to be reconstructed in a panoramic imaging; (S2) providing projection images of the panoramic imaging, wherein the projection images have image points which depict the mapping points (S) of the 3D surface (2); (S3) determining the projection geometries of the individual projection images on the basis of their imaging times and imaging course during the panoramic imaging, wherein the projection geometries describe the spatial relationship of the projection images to the 3D surface (2); (S4) determining the image points in the projection images which depict the mapping points (S) of the 3D surface (2) to be reconstructed by using the projection geometries of the projection images; (S5) generating a panoramic image (1a, 1b) by summing the values of the determined image points within the projection images which depict the same mapping point (S) of the 3D surface (2) to be reconstructed; (S6) length measurement between two image points (P1, P2; P1`, P2`) on the generated panoramic image (1a; 1b) using the corresponding positions of the mapping points (S1, S2; S1`, S2`) within the 3D surface (2), wherein the length (L; L`) is calculated either along the shortest path (W) in space or along a path (W`) on the 3D surface (2); (S7) outputting the result of the length measurement by means of an output device.
Manufacturing a dental part with volumetric units that vary in translucency, shading and/or color. A beam translation module of a 3D printing system is used to translate an input pattern into an output for controlling a spatial structuring of light for 3D printing an object from a resin material that is sensitive to light intensity, light color or light exposure time.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
A61K 9/00 - Medicinal preparations characterised by special physical form
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
Manufacturing a dental part with volumetric units that vary in translucency, shading and/or color. A beam translation module of a 3D printing system is used to translate an input pattern into an output for controlling a spatial structuring of light for 3D printing an object from a resin material that is sensitive to light intensity, light color or light exposure time.
The present invention relates to a dental treatment unit (1) comprising: a chair (2) for seating the patient; a chair base (3) for holding the chair (2); a water tower (4) for cleaning/sanitizing dental instruments (5); a dentist's element (6) for depositing the dental instruments (5); an assistant element (7) for depositing dental instruments (5); at least one movable projector (8) for projecting images; at least one movable camera (9) for acquiring image data; a microphone (10) for acquiring acoustic data; a loudspeaker (11); and a computer (12) for controlling the projector (8), the camera (9), the microphone (10), the loudspeaker (11), and for processing the acquired image data and the acquired acoustic data, wherein the projector (8) is configured to project images onto a projection area (13), wherein the camera (9) is configured to acquire image data from the projection area (13), wherein the projection area (13) can be selectively moved in at least one of a plurality of different positions (14-20) which are defined relative to location and geometry of the chair (2), the chair base (3), the water tower (4), the dentist's element (6), and the assistant's element (7).
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Dental zirconia ceramic block for the fabrication of
individually designed restorations using a CAD/CAM
procedure; materials for use in making dental prosthetics,
dental crowns, artificial teeth, dentures and denture parts;
dental composite materials; dental ceramic material.
In a method for masking one or more regions surrounding an anatomical region of interest for each of one or more MRI images obtained from MRI imaging data, the one or more regions surrounding the anatomical region of interest are masked based on control data determined for identifying the anatomical region of interest in the MRI imaging data. The MRI imaging data may be obtained during an MRI exam of a patient for a measurement volume including the anatomical region of interest. The anatomical region of interest may be ascertained before performing the MRI exam.
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
The present invention relates to an extraoral x-ray system (1) suitable for dental panoramic imaging of a patient, comprising: an x-ray emitter array (3) having at least two individual x-ray emitters (3a; 3b; 3c) each for emitting x-rays, and offset at least along a predetermined direction; and an x-ray detector (4) for at least partially detecting the x-rays emitted by the individual x-ray emitters (3a; 3b; 3c) during one revolution, wherein the x-ray emitter array (3) and the x-ray detector (4) being arranged for movement relative to one another about an axis running parallel to the said predetermined direction, wherein the areas of the x-ray detector (4) respectively irradiated by the individual x-ray emitters (3a; 3b; 3c) at least partially overlap; an aperture means for collimating the x-ray radiation emitted by the individual x-ray emitters (3a; 3b; 3c) to the respective areas to be irradiated; a control device for moving the x-ray emitter array (3) and the x-ray detector (4) about the said parallel running axis, and for controlling the individual x-ray emitters (3a; 3b; 3c) and for reading out the image series of the respective irradiated areas of the X-ray detector (4) during the said revolution; a computing unit for generating one panoramic image (16) of a layer to be sharply imaged by using said at least two image series, the computing unit being configured to apply a weighting of image pixels when generating the said one panoramic image (16), wherein the said image pixels belong to at least the two image series.
A handpiece (108) of an ultrasonic scaler equipped with a closed system water delivery and an integrated in-line divided electrolytic cell (106) for generating ozone, one or more gas separators (116a, 116b), in-line dissolved gas monitoring and closed loop control over ozone concentration using one or more ultraviolet sensors (110).
Dental treatment unit comprising a seat together with a basin for rinsing the mouth and/or an examination lamp and/or a console for holding dental handpieces and/or an instrument tray and/or a dental video display and/or monitors.
A dental tool (1) for use in a dental CNC milling/grinding machine for machining a dental restoration from a workpiece (6), the dental tool (1) has a shaft (2). The dental tool includes a miniaturized RFID tag (3) which is arranged in front of the back end (2a) of the shaft (2). A dental CNC milling/grinding machine (5) is also disclosed and has a machine compartment (5a) including one or more carriage units (5b) each adapted to exchangeably receive and drive one or more dental tools (1) for machining a dental restoration from a workpiece (6); one or more transceiver units (5c) each adapted to read and/or write the miniaturized RFID tag (3) of a dental tool (1); and a control unit adapted to control the transceiver units (5c), and the carriage units (5b) based on the information read from the miniaturized RFID tags (3).
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
Dental and endodontic instruments, devices, equipment and
apparatus; orthodontic instruments, devices, equipment, and
apparatus; dental and endodontic instruments, namely
endodontic files; parts and fittings for the aforesaid
goods.
72.
METHOD FOR THE PRODUCTION OF A BLANK, BLANK AND A DENTAL RESTORATION
The invention relates to a method for the production of a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a mold and wherein the materials are pressed and after pressing are sintered. Thereby, a layer of the first ceramic material is filled into the mold, a first open cavity is formed in the layer, the second ceramic material is filled into the first open cavity and the materials are pressed together and are then heat-treated. Both the first ceramic material and the second ceramic material contain, or consists of, lithium silicate glass ceramic.
B29C 43/14 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles in several steps
The present invention relates to a dental handpiece (1) comprising: a head (4); a clamping means (13) which is rotatably arranged within a bearing (19) inside the head (4), and adapted for releasably clamping a dental drill (2), wherein the bearing (19) has an inner race (21) fixed to the clamping means (13) and an outer race (21) fixed to a housing (5) of the head (4); a driving means for rotating the clamping means (13) about an axial direction of the dental drill (2); a push button (7) which is arranged movably in the head (4) along the axial direction and configured to actuate the clamping means (13) to release the dental drill (2); and a biasing means to move the push button (7) away from the clamping means (13); characterized in that a radial inner surface (7a) of the push button (7) is arranged to contact and slide on a radial outer surface (20a) of the outer race (20) which configures a guide (12) for the moving push button (7), wherein the radial direction is perpendicular to axial direction of the dental drill (2); and wherein a radial clearance (A) is arranged between a radial inner surface (5a) of the housing (5) and a radial outer surface (7b) of the push button (7).
The present invention relates to a dental handpiece (1) comprising: a dental handpiece (1) comprising: a head (4); a rotatable hollow shaft (15) which is rotatably arranged inside the head (4); a driving means for rotating the hollow shaft (15); a chuck (26) having resilient arms (27) for releasably clamping a dental drill (2), wherein the chuck (26) is fixed into the hollow shaft (15) so as to rotate with same; a ball (14) which is axially movably arranged inside the rotatable hollow shaft (15) and in direct contact with the resilient arms (27) of the chuck (26), wherein the ball (14) partly protrudes through an opening (17) on the upper end of the hollow shaft (15), and wherein the opening (17) is smaller than the size of the ball (14); a push button (7) which is arranged in the head (4) and configured to contact, when pressed by a user, the partly protruding ball (14) and move the ball (14) downwardly in between the resilient arms (27) so as flex the resilient arms (27) radially outwards and release the dental drill (2), wherein the resilient arms (27) bias the ball (14) inside the rotatable hollow shaft (15) towards the opening (17); and a biasing means to move the push button (7) away from the ball (14), wherein the push button (7) is not in contact with the ball (15) when it is released.
The present invention relates to methods for curing polymeric dental appliances comprised of partially cured photopolymerizable components, especially for additively manufactured denture base and artificial tooth components utilized in the production of full and partial dental prostheses. In particular, the invention relates to methods of utilizing a curing apparatus having one or more controllable heating sources and one or more controllable LED light sources to achieve specific preheating and light curing conditions for more effectively converting partially cured photopolymerizable components from a partially cured state to a final cured state.
The present invention relates to methods for curing polymeric dental appliances comprised of partially cured photopolymerizable components, especially for additively manufactured denture base and artificial tooth components utilized in the production of full and partial dental prostheses. In particular, the invention relates to methods of utilizing a curing apparatus having one or more controllable heating sources and one or more controllable LED light sources to achieve specific preheating and light curing conditions for more effectively converting partially cured photopolymerizable components from a partially cured state to a final cured state.
The present invention relates to a process for producing a composite material with reduced porosity by applying a vacuum to the mixing container before actual mixing steps. The composite material comprises a monomer mixture and a glass filler or a blend of glass fillers. The monomer mixture comprises at least one polymerizable monomer, a polymerization initiator and a polymerization stabilizer. Optionally, the composite material may comprise at least one pigment. The porosity of the composite material was determined and the porosity was compared with the porosity of the composite material produced by a process wherein a vacuum was not applied before all of the mixing steps. The preferred mixing container of the processes of the present invention is a planetary mixer or a centrifugal mixer. The composite material is for use in the dental industry.
The present teachings relate to a method for improving usability of dental imaging data, comprising: providing imaging data comprising a plurality of different images of at least one dental imaging modality of a patient; providing metadata for each of the images; selecting one or some of the images; retrieving in response to the selection at least one another image; wherein the retrieval is performed by comparing metadata of at least one of the selected images and metadata of at least one of the retrieved images. The present teachings also relate to systems, software products and storage media.
G16H 30/20 - ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
A61B 6/14 - Applications or adaptations for dentistry
G16H 10/60 - ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A method for optical intraoral imaging of an oral anatomy via an intraoral scanner, comprising: providing initial data related to the oral anatomy and/or the intraoral scanner; computing, using the initial data, a number of intraoral images to be captured via the intraoral scanner; acquiring, via the intraoral scanner, said number of intraoral images at a given location at the oral anatomy; rendering, from at least one of the acquired intraoral images and the initial data or from a plurality of the acquired intraoral images, a more optimally exposed two-dimensional intraoral image. The present teachings also relate to systems, a dental scanner, software products, uses and storage media.
G16H 50/50 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
The present teachings relate to an assembled dental implant comprising a metallic body manufactured at least partially via an additive manufacturing process; wherein the body is provided with a cavity having an opening on one end of the body, and an inlay part at least partly introduced within the cavity and sealably connected with the metallic body thereby sealing-off the cavity. The present teachings also relate to the metallic dental implant body and manufacturing methods.
The present invention is related to a dental composition comprising at least one polymerizable monomer having at least one ethylenically unsaturated group; and a radical initiator system comprising a photosensitizer having an absorption maximum ranging from 400 nm to 800 nm; and at least one thiophenium compound as coinitiator.
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
(1) Materials for use in making dental prosthetics, dental crowns, artificial teeth, dentures and denture parts; dental composite materials; dental ceramic material.
(2) Dental zirconia ceramic block for the fabrication of individually designed restorations using a CAD/CAM procedure.
An artificial anterior tooth having a more naturalistic or lifelike appearance for use in the design and/or production of a dental prosthesis and/or dental restoration is provided. The lingual-facing surface of an artificial anterior tooth is provided with a plurality of furrows in predetermined locations on the lingual-facing surface to correspond with a plurality of furrows on the labial-facing surface in predetermined locations on the labial-facing surface, so as to impart variable, lifelike color and/or translucency properties throughout the tooth.
A method for determining the optimum relative position of at least one sensor and/or at least one imaging source of an imaging device for at least one intraoral imaging, and for the non-overlapping imaging of at least two tooth root canals. The disclosure also relates to a sensor holder (1) for intraoral imaging including at least one biting device (2) that is insertable into the mouth of a patient, at least one holding device (3) at least indirectly engaged with the biting device (2) for fixing at least one sensor, and at least one centering device (4) for aligning at least one imaging device. The centering device (4) is at least indirectly in operative connection with the biting device (2) via at least one centering device holding portion (5).
An artificial anterior tooth having a more naturalistic or lifelike appearance for use in the design and/or production of a dental prosthesis and/or dental restoration is provided. The lingual-facing surface of an artificial anterior tooth is provided with a plurality of furrows in predetermined locations on the lingual-facing surface to correspond with a plurality of furrows on the labial-facing surface in predetermined locations on the labial-facing surface, so as to impart variable, lifelike color and/or translucency properties throughout the tooth.
