Abstract: A natural and sustainable material is derived from the nut of the tagua palm tree that may be fashioned into devices for humans and animals. A pulverized and reconstituted material is disclosed herein that is also treated with a low temperature atmospheric plasma treatment. In an embodiment, a biocompatible carrier gas is ionized to form a biocompatible atmospheric plasma stream. Material, such as nano-scale powdered hydroxyapatite, is introduced into the plasma stream, which is then applied to the natural nut material.

Abstract: Disclosed herein are example embodiments of methods and systems for identifying manufacturing defects of a manufactured dentition model. One of the methods for performing quality control comprises: determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model. The differences model can be generated based on differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data. The scanned 3D patient-dentition data can be generated using 3D data of a patient's dentition, and the scanned 3D manufactured-dentition data can be generated using 3D data of the manufactured dentition model. The manufactured dentition model can be a 3D printed model.

Abstract: A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.

Abstract: According to one example, a holding device system including a two-part holding frame having a blank holder coupled to a main frame is disclosed. The two-part holding frame can define a processing space and a fixation space. The holding device system can further include at least one fixation element having a head positioned within the fixation space and a threaded shaft extending within and engaged with a bore of the two-part holding frame. In one example, when the blank holder is coupled to the main frame, the at least one fixation element is unable to be removed from the two-part holding frame.

Abstract: Method for providing a natural colour and optical depth to a dental object comprising the steps: providing a framework of the dental object, taking an object colour picture of an adjacent dental object or reference dental object, and uploading the object colour picture into a computing device, calibrating and adjusting the uploaded object colour picture into a target object colour picture in a computing device, (pre)determining the thickness profile of the enamel material to be applied on the framework, correcting in a computing device of the digital picture elements of the target object colour picture for the thickness profile of the enamel material to be applied on the position of the digital picture elements and providing a print colour picture of the corrected digital picture elements, printing the print colour picture as a print layer on the framework, applying the enamel material in the predetermined profile-thickness upon the print layer upon the framework.

Abstract: The present disclosure relates to an automated process for the design of dental aligners. Specifically, the present disclosure relates to a method for generating an orthodontic treatment plan for at least one dental arch of a patient, comprising extracting control points of teeth of the at least one dental arch of the patient from received patient-related data, determining, based on the extracted control points, a target dental arch of the patient, calculating, based on the determined target dental arch of the patient, one or more teeth movement stages, and generating, by processing circuitry and based on the calculated one or more teeth movement stages, the orthodontic treatment plan for the at least one dental arch of the patient.

Abstract: A System of Triple abutments with Tconnect includes T-abutments to place at least three dental crowns over one osseointegrated implant and one T-abutment, for partial fixed cases and new total fixed segmented cases, T-Over abutments with a Plug T for use of overdentures over only one abutment and only one osseointegrated implant, a T-healing for guide specific gingival contour of the Tconnect in the healing phase and T-guides to guide the implant surgery to be positioned for the use of abutments of the system.

Abstract: A natural and sustainable material is derived from the nut of the tagua palm tree that may be fashioned into devices for humans and animals. A pulverized and reconstituted material is disclosed herein that is also treated with a low temperature atmospheric plasma treatment. In an embodiment, a biocompatible carrier gas is ionized to form a biocompatible atmospheric plasma stream. Material, such as nano-scale powdered hydroxyapatite, is introduced into the plasma stream, which is then applied to the natural nut material.

Abstract: A method for treating a subject's teeth. A target configuration for the subject's teeth is determined. Receiving features are produced on a dental base in response to the target configuration, the receiving features being configured to receive physical tooth models. The physical tooth models are assembled on the dental base to form a physical arch model. A dental aligner is produced using the physical arch model to move the subject's teeth to the target configuration.

Abstract: The present invention relates to a computer implemented method for modifying a digital three-dimensional model (3) of a dentition comprising: displaying an image of the dentition by applying a virtual camera to the three-dimensional model to render the image for a display (1); acquiring a line drawn by a user on the image on the display (1); projecting the acquired line, using the virtual camera (4), to a three-dimensional projection surface (7) approximating the shape of the dental arches and extending the upper and lower dental arches to cover any opening therebetween; obtaining visible teeth arch contour curves, namely incisal curve and gingiva border curve, of the upper and lower teeth arches, and projecting the teeth arch contour curves to the projection surface; selecting one of the teeth arch contour curves as teeth arch contour curve to be modified and selecting the other teeth arch contour curve of the same teeth arch or a curve derived therefrom as a baseline curve; deforming all teeth belonging

Abstract: Disclosed herein are example embodiments of methods and systems for identifying manufacturing defects of a manufactured dentition model. One of the methods for performing quality control comprises: determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model. The differences model can be generated based on differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data. The scanned 3D patient-dentition data can be generated using 3D data of a patient's dentition, and the scanned 3D manufactured-dentition data can be generated using 3D data of the manufactured dentition model. The manufactured dentition model can be a 3D printed model.

Abstract: A magnifying glass captures an image of a tooth by a plurality of cameras for observation. The plurality of cameras includes a narrow range camera capturing a narrow range image of the tooth and a wide range camera capturing a wide range image of the tooth. The magnifying glass includes a three-dimensional position calculator detecting a three-dimensional position of at least the tooth based on the wide range image; a blur correction processor correcting a blur of the narrow range image, based on a change in a three-dimensional positional relationship between the tooth, the three-dimensional position of which has been detected by the three-dimensional position detector, and the narrow range camera; and an image display portion displaying at least the narrow range image having the blur corrected.

Abstract: A method of making a monolithic dental restoration. The method includes the steps of providing a monolithic precursor of a dental restoration and firing the monolithic dental restoration precursor to provide the monolithic dental restoration. The zirconia material of both the dental restoration precursor as well as the dental restoration has a relative density of greater than 98% of the theoretic density of the zirconia material. The invention helps providing a color of a non-glazed dental restoration which resembles the color of a glazed dental restoration.

Abstract: A workpiece unit containing a workpiece body is provided. A method for producing the workpiece unit is also provided. The workpiece body contains a plurality of sections. The sections divide the processing surface of the workpiece body. The size of each section of the workpiece body can be adjusted or selected according to the demand so that it is possible to increase utilization efficiency of the workpiece body.

Abstract: A system comprising a scanning device is operable by a user to scan teeth of the user to acquire images of the teeth. The scanning device comprises a camera operable to acquire the images, a guide configured to orient the camera with respect to the teeth to facilitate acquisition of the images, and a server system configured to receive the images acquired by the scanning device and to develop a treatment plan for the user based on the received images.

Abstract: The present disclosure includes methods, systems, and devices for prioritization of three dimensional dental elements. One method for prioritizing three dimensional dental elements includes receiving a virtual initial dental data set (IDDS) of teeth having spatial information regarding the positions of a number of teeth in the virtual IDDS with respect to each other for presentation of the teeth in a virtual three dimensional space to be viewed on a user interface, setting prioritization values of a number of elements of one or more of the number of teeth, and prioritizing the number of elements to be selected by a user based upon their prioritization values.

Abstract: Apparatuses and methods for performing orthodontic treatment planning are provided. Virtual/Augmented Reality devices can be used to virtually manipulate patient's teeth, modify virtual models of the patient's teeth, analyze the fit of a dental appliance on the patient's teeth, analyze the position of attachment sites for dental appliances, and provide overlays showing forces applied to the patient's teeth. The VR/AR devices can be used by physicians and/or the patient to provide and display treatment planning.

Abstract: A method is provided for shaping a custom dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.

Abstract: A dental template to position an object on a patient's tooth includes digitizing the patient's tooth; adding virtual objects to predetermined locations on the digitized tooth; and fabricating the dental template to locate the object on the patient's tooth. The template can be used for etching or for positioning brackets on teeth.

Abstract: A method and system for making a dental restoration are provided. The method comprises the step of providing a computer model of a three-dimensional reference surface that is based for example on a tooth structure of a tooth to be restored in a patient's dentition. The method further comprises the steps of visualizing the three-dimensional reference surface, providing a user operable virtual material deposition tool, and using the virtual material deposition tool to deposit a plurality of differently colored layers on the reference surface. The system provides functionality to perform the method of the invention. The invention preferably helps maximizing optical and geometrical quality in a dental restoration.

Abstract: Systems and methods are provided for machining dental prostheses including, over a network, receiving data concerning a dental prosthesis, selecting a material from which to machine the dental prosthesis, and determining machining instructions for machining the dental prosthesis based on a nominal enlargement factor corresponding to the selected material. The method can also include storing the machining instructions, receiving a request from a milling machine for a dental prosthesis to be milled by the milling machine, and associating the dental prosthesis with the milling machine. The method can also include selecting a material blank comprised of the selected material, determining a material blank enlargement factor of the selected material blank, modifying the machining instructions according to a difference between the nominal enlargement factor and the material blank enlargement factor, and machining the dental prosthesis according to the modified machining instructions.

Abstract: The present invention relates to a computer implemented method for modifying a digital three-dimensional model (3) of a dentition comprising: displaying an image of the dentition by applying a virtual camera to the three-dimensional model to render the image for a display (1); acquiring a line drawn by a user on the image on the display (1); projecting the acquired line, using the virtual camera (4), to a three-dimensional projection surface (7) approximating the shape of the dental arches and extending the upper and lower dental arches to cover any opening therebetween; obtaining visible teeth arch contour curves, namely incisal curve and gingiva border curve, of the upper and lower teeth arches, and projecting the teeth arch contour curves to the projection surface; selecting one of the teeth arch contour curves as teeth arch contour curve to be modified and selecting the other teeth arch contour curve of the same teeth arch or a curve derived therefrom as a baseline curve; deforming all teeth belonging

Abstract: A method, a system and a user interface for creating a digital restoration design for the manufacture of a dental restoration for one or more of a patient's teeth where minimal manual interaction is required when setting the restoration margin line includes obtaining a digital 3D representation of the patient's unprepared teeth; obtaining a set of one or more digital teeth anatomies; arranging the digital teeth anatomies and the digital 3D representation according to a preferred relative arrangement and creating a digital restoration design including a restoration margin line, where the restoration margin line is derived at least partly from an intersection of the digital 3D representation and the digital teeth anatomies.

Abstract: An apparatus is described for measuring surface topography of a three-dimensional structure. In many embodiments, the apparatus is configured to focus each of a plurality of light beams to a respective fixed focal position relative to the apparatus. The apparatus measures a characteristic of each of a plurality of returned light beams that are generated by illuminating the three-dimensional structure with the light beams. The characteristic is measured for a plurality of different positions and/or orientations between the apparatus and the three-dimensional structure. Surface topography of the three-dimensional structure is determined based at least in part on the measured characteristic of the returned light beams for the plurality of different positions and/or orientations between the apparatus and the three-dimensional structure.

Abstract: An Anterior Guidance Package (AGP) equipped splint may be produced for a patient with bruxism, temporo mandibular disorder (TMD), or sleep apnea. The AGP equipped splint has maxillary and mandibular guidance components attached to respective retentive pieces to provide superior anterior guidance. Using the disclosed systems and methods for producing the AGP equipped splint, a patient with or without a severe malocclusion can receive a customized AGP equipped splint without visiting the dentist repeatedly.

Abstract: A dental template to position an object on a patient's tooth includes digitizing the patient's tooth; adding virtual objects to predetermined locations on the digitized tooth; and fabricating the dental template to locate the object on the patient's tooth. The template can be used for etching or for positioning brackets on teeth.

Abstract: The invention relates to a method for producing a denture base semi-finished product with the following steps: 1) Recording and digitalizing the oral cavity situation of a patient, wherein a digital three-dimensional oral cavity model of the patient is produced, or providing a digital three-dimensional oral cavity model of the oral cavity situation of a patient; 2) Implementing a first calculation in which a digital three-dimensional first model (A) of a denture base is calculated, wherein the oral cavity model of the oral cavity situation is used as a basis for the first calculation; 3) Conducting a second calculation, in which a digital three-dimensional second model (B) of a denture base semi-finished product is calculated from the first model (A) of the denture base, wherein volume is added at least in sections to the three-dimensional model (A) of the denture base; and 4) Producing the denture base semi-finished product with a Rapid Prototyping method, wherein with the Rapid Prototyping method, a CAM met

Abstract: A method and device for ensuring better placement of an implant, such as an implant that is affixed via bone bed drilling to a recipient's skull. In particular, the technology comprises an apparatus and method of deploying the same that can lead to an improved goodness of fit of the implant. The apparatus and process of the present disclosure are particularly applicable to affixing auditory prostheses such as cochlear implants. The implant is provided with a template that has the same dimensions as the implant that is to be affixed. This template has a dye-impregnated material on its distal surface that is used during bone bed drilling to identify bony spots that have to be drilled away to get a flat surface and a better alignment of the implant with the bone bed. The template may also be provided in kit form.

Abstract: A porous, silicate, ceramic body, optionally with different colors, with a first density, can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, is 25 to 180 MPa.

Abstract: A method for determining virtual articulation from dental scans. The method includes receiving digital 3D models of a person's maxillary and mandibular arches, and digital 3D models of a plurality of different bite poses of the arches. The digital 3D models of the maxillary and mandibular arches are registered with the bite poses to generate transforms defining spatial relationships between the arches for the bite poses. Based upon the digital 3D models and transforms, the method computes a pure rotation axis representation for each bite pose of the mandibular arch with respect to the maxillary arch. The virtual articulation can be used in making restorations or for diagnostic purposes.

Abstract: A method for manufacturing a transparent aligner for dental alignment is disclosed. The method may include: determining a tooth contour model which includes a contour portion surrounding a surface of a tooth requiring rotational correction; determining an axis of rotation for the tooth requiring rotational correction; determining two points touching exterior surfaces of the tooth requiring rotational correction based on the axis of rotation and a direction of rotation required for correcting the tooth requiring rotational correction, the two points being symmetrical with respect to the axis of rotation; determining a rotational correction model for the rotational correction by protruding the contour portion towards a tooth surface and towards a direction of rotation at the two points; and generating the 3D dental alignment model data by applying the rotational correction model.

Abstract: A method for reconstructing a functional tooth by using a carrier loaded with a plurality of mesenchymal stem cells including at least one of a stem cell derived from Apical Papilla (SCAP), Periodontal Ligament Stem Cells (PDLSC), and Dental Pulp Stem Cells (DPSC). The mesenchymal stem cell loaded carrier is planted into a site within a subject's oral cavity to form a bio-root upon which a crown may be affixed, The mesenchymal stem cells will develop new periodontal tissues to stabilize the bio-root. Methods disclosed herein are particularly beneficial for subjects lacking good bone structures for conventional crown treatments.

Abstract: The present invention to a method of denture manufacture that incorporates CAM-formed zirconia teeth or zirconia tooth segment members, resulting in a natural fit, feel, and wear essentially equivalent to the wear properties of natural teeth, with wear and durability properties superior to dentures known in the art.

Abstract: A method and system for making a dental restoration are provided. The method comprises the step of providing a computer model of a three-dimensional reference surface that is based for example on a tooth structure of a tooth to be restored in a patient's dentition. The method further comprises the steps of visualizing the three-dimensional reference surface, providing a user operable virtual material deposition tool, and using the virtual material deposition tool to deposit a plurality of differently colored layers on the reference surface. The system provides functionality to perform the method of the invention. The invention preferably helps maximizing optical and geometrical quality in a dental restoration.

Abstract: A computing system includes a network interface, a first datastore, a second datastore, and a merge module. The merge module is to receive a set of one or more area description files from a set of one or more first mobile devices. Each area description file represents a point cloud of spatial features detected by a corresponding first mobile device at an area. The computing system further includes a localization module and a query module. The localization generation module is to generate a localization area description file for the area from the set of one or more area description files and to store the localization area description file in the second datastore. The localization area description file represents a point cloud of spatial features for the area. The query module is to provide the localization area description file to a second mobile device via the network interface.

Abstract: A dental arch model fabricated by a 3-D printing process is covered by conforming a liquid-dissolvable sheet of material onto a portion of the dental arch model to physically isolate material from which the dental arch model has been fabricated from material which will be used to fabricate an intra-oral device. The sheet material is a barrier which renders the material of the dental arch model and the material of the intra-oral device immune to chemical reaction with each other. After the device has been removed from the model, liquid is applied to the liquid-dissolvable material on the model. Instead of using a sheet as a barrier, a conditioning coating may be applied to the arch model, and a release coating is applied over the conditioning coating.

Abstract: A dental restoration method that eliminates time-consuming, labor-intensive steps conventionally needed to fabricate molds, and thereby facilitates dental restorations in a shorter time, while reducing the discomfort and embarrassment sometimes associated with provisional restorations involves scanning an existing dental structure to generate a three-dimensional digital model of the existing dental structure, generating a three-dimensional digital model corresponding with a planned dental structure, and using an additive manufacturing process and apparatus (e.g., a 3-D printer) to fabricate the planned dental structure directly on the existing dental structure.

Abstract: The present disclosure relates to a method and device for producing a dental component. The method includes: a) providing a piece of material attached to or held by a first holder; b) shaping the piece of material to form the dental component and at least one support pin maintaining the dental component attached to the first holder or the initial piece of material; c) engaging a second holder to the dental component while the dental component still is attached to the first holder or the initial piece of material via the at least one support pin; and d) removing the at least one support pin from the dental component while the dental component is engaged by the second holder.

Abstract: A dental block includes a block body having a one surface, and an engagement portion to be engaged with a dental implant fixture. The engagement portion has a bolt through hole and is formed in the one surface of the block body. The dental block further includes a ring-shaped abutment surface to be abutted against a top surface on the oral cavity inner side of the dental implant fixture. The ring-shaped abutment surface is positioned more inside the block body than the one surface and is formed from an end portion positioned at the most oral cavity inner side of the engagement portion to surround the end portion, and to be parallel to the one surface of the block body. The dental block further includes a diameter-enlarged portion having a tapered shape whose diameter increases from the ring-shaped abutment surface toward the one surface of the block body.

Abstract: A virtual model of an intraoral cavity is provided, wherein this process is initialized by a dental clinic, and the design and manufacture of a suitable dental prosthesis for the intraoral cavity is shared between a dental lab and a service center.

Abstract: A collaborative approach, incorporating a server for data transmission, security verification, and authentication verification, is implemented between a dental office and a dental laboratory to fabricate a designed dental restoration. A scanner is used in a dental office to take a scan of a patient's mouth. The dental laboratory designs the dental restoration with specialized design software taking into account the scan of the mouth as well as a prescription from the dental office. The parameters defining the designed dental restoration are contained in a design file. The design file is used to create milling specifications defining instructions for milling the designed dental restoration. The materials for the dental restoration are loaded into a mill, where the dental restoration is fabricated in accordance with the milling specifications. Security verification ensures authorized materials are used, and authentication verification ensures authorized materials and processes are used.

Abstract: Occlusal-surface shape data and occlusal-surface position data of dentures are acquired on a dentist side, and the occlusal-surface shape data and the occlusal-surface position data are then transmitted to a grinding data provider side. Maxillomandibular occlusal state data is reproduced from the occlusal-surface shape data and the occlusal-surface position data on the grinding data provider side. A maxillomandibular occlusal adjustment portion is determined by changing a maxillomandibular occlusal vertical dimension on the grinding data provider side. Cutting data including the maxillomandibular occlusal adjustment portion and the occlusal-surface position data is prepared on the grinding data provider side, and the cutting data is transmitted to the dentist side. An occlusal adjustment is carried out on the dentist side by cutting the dentures by a grinding machine based on the cutting data.

Abstract: In a method of analysis, a target image is registered to define a plurality of keypoints arranged in sets corresponding to polygons or linear segments in the target image. A database of registered and annotated images is accessed and a polygon-wise comparison between the target image and each database image is employed. The comparison is used for projecting annotated locations from the database images into the target image.

Abstract: The aim of the invention is to improve the bond between the oxide ceramic and the veneer material and to increase the durability of said bond. According to the invention, an adhesion promoter (mixture of silicate ceramic and quartz) is applied as a sol to a main body that is to be veneered and that has not yet been densely sintered, the main body being made of oxide ceramic or starting materials thereof. The main body is then sintered to a final state together with the worked-in adhesion promoter, and afterwards the veneer material is applied. The invention is used, for example, to produce dental crowns and bridges having a high load-bearing capacity.

Abstract: The invention provides methods of making provisional and long-term dental restorations, particularly dental veneers, implants, crowns and bridges. A shell or restoration form made of polymerizable material having good dimensional shape-stability in its uncured condition is used to make the dental restoration. A polymerizable material is introduced into the cavity of the shell form. The outer shell and injected polymerizable material are polymerized and bond together to form a hardened crown structure. In one embodiment, the restoration can be fabricated indirectly by a dental laboratory. In another version, a dental practitioner can make the restoration chairside for a patient in a dental office.

Abstract: The invention relates to the use of a composite resin composition comprising (a) at least one polyreactive binder, (b) a first photopolymerization initiator having an absorption maximum at a wavelength of less than 400 nm, (c) a second photopolymerization initiator having an absorption maximum at a wavelength of at least 400 nm and (d) an absorber having an absorption maximum at a wavelength of less than 400 nm, for the stereolithographic production of a dental shaped part based on composite resin. The invention also relates to a process for the stereolithographic production of a dental shaped part and the use of the composite resin composition in this process.

Abstract: A method of making a dental crown or bridge restoration comprises forming a precursor crown outside of a patient's mouth with a first restorative material, with a buccal contour on the buccal wall substantially the same as a buccal contour on a final crown restoration, and an open space on or around at least one of the mesial side wall or the distal side wall; and filling and securing a second material, different from the first restorative material, inside the open space or pocket of the precursor crown while outside the patient's mouth, and with the precursor crown having a strength substantially equivalent to the final crown restoration, and with the buccal contour being substantially the same as the buccal contour on the final crown, prior to filling and securing the second material.

Abstract: A method for manufacturing a dental restoration for a patient, where the method includes: obtaining a 3D scan of at least a restoration site of the patient's mouth, where the manufactured dental restoration is adapted for fitting to the restoration site; obtaining a CAD design of the dental restoration; milling the restoration from a material, where the restoration is milled both on an inside surface configured for fitting to the shape of the restoration site of the patient's mouth and on an outside surface, where the milling is according to the obtained CAD design; transferring the milled restoration to a retention means providing a fixed known position of the restoration relative to a post-processing machinery, where the restoration is retained on the inside surface, such that the outside surface of the restoration is approachable/free/accessible; and performing post-processing of the outside surface of the restoration.

Abstract: A process for determining 3-D data of at least one prepared jaw area, such as a prepared tooth stump, by mechanically scanning the jaw area and digitizing the measured values determined during the scanning. The jaw area is prepared with a dental instrument having positions which are optically measured during the preparation, and the 3-D data is determined from the positions of the dental instrument that are associated with the prepared jaw area.

Abstract: A dental Computer-aided design (CAD)/Computer-aided manufacturing (CAM) system forms a custom dental preparation guide for guiding a dental tool that alters a shapes a tooth structure to which a custom prosthetic dental item is to be attached. The system acquires an optical measurement and an x-ray of at least one dental structure. The system correlates the acquired optical measurement and the x-ray to form a model of the at least one dental structure. The system generates a model of a reduced tooth structure based on the model of the at least one dental structure. The system also provides at least one dental preparation guide based on the model of the reduced tooth structure.