Abstract: The invention relates to a method for filling a mesh hole in a mesh of a 3D digital model. A boundary of the mesh hole is provided by a first closed boundary curve comprising boundary edges connecting boundary vertices of a first plurality of boundary vertices. The method comprises selecting a maximized triple of boundary vertices comprising a first, a second and a third boundary vertex. The selected maximized triple is maximized by selecting a boundary vertex of the first plurality of boundary vertices as the third boundary vertex of the selected maximized triple. The selected maximized triple satisfies a first criterion. The first and the second vertex of the selected maximized triple are connected using a connecting curve from the first to the second boundary vertex.

Abstract: Disclosed is a method for replacing first three-dimensional digital tooth models by second three-dimensional digital tooth models. The method comprises receiving a three-dimensional digital anatomic model of an oral anatomic structure of a patient and the first three-dimensional digital tooth models arranged with respect to the three-dimensional digital anatomic model at tooth positions with tooth orientations. The first three-dimensional digital tooth models comprise first identifiers identifying the dental key structures. First three-dimensional digital tooth models are selected for a replacement. The selected first three-dimensional digital tooth models are replaced by the second three-dimensional digital tooth models.

Abstract: The invention relates to a method for determining a preparation surface of a tooth for preparing the tooth for receiving a dental restoration element. The method comprises receiving a three-dimensional digital tooth model, a three-dimensional digital restorative tooth model, a definition of a restoration area, a first value selected for a basic preparation depth of the preparation, and a second value selected for a restoration thickness of the dental restoration element. The method further comprises determining a first reference surface using the selected first value, determining a second reference surface using the selected second value, determining one or more preparation reference surface sections using the first and second reference surface, and determining the preparation surface of the tooth using the determined one or more preparation reference surface sections.

Abstract: The invention relates to a method for configurating a patient individual physical transfer key for transferring a virtually defined first position of a three-dimensional virtual representation of a physical model of a patients dentition within a 3D virtual representation of a physical articulator to the physical model of the patients dentition and the physical articulator. A 3D virtual representation of the physical transfer key is generated and provided for generating the physical transfer key. The transfer key is configured to be connected to a first support section of the articulator and to support a first one of the 3D virtual representations of the model components of the dentition model at the first position.

Abstract: The invention relates to a dental model (1) for dental-technical modeling having a model base (2) and having a tooth stump (4) that can be removed from the model base (2), the model base (2) having a receiving cavity (3) for receiving the tooth stump (4), the tooth stump (4) having a preparation section (5), the preparation section (5) being designed for the prosthetic reconstruction of a tooth and the shaft (6) being designed for insertion along an insertion direction into the receiving cavity (3), the model base (2) and/or the shaft (6) having an elastic positioning element for positioning the tooth stump (4) relative to the model base (2).

Abstract: The invention relates to a bonding auxiliary device (100) for arranging, aligning and fixing a plurality of artificial teeth (210) to be bonded into an artificial gingiva (220) of a dental prosthesis (200), the bonding auxiliary device (100) comprising: an occlusion device (110) for arranging and aligning the teeth (210) relative to one another, a support device (120) for supporting a prosthetic body (221) of the first dental prosthesis (200) comprising the gingiva (220), and a clamping element (140) for fixing the teeth (210), which are arranged and aligned by means of the occlusion device (110), in the gingiva (220) supported by the support device (120).

Abstract: Disclosed is a computer-implemented method for registering a first and a second three-dimensional digital structure. The first and second three-dimensional digital structures are received. First structural features of the first three-dimensional digital structure and second structural features of the second three-dimensional digital structure are determined. A first plurality of first feature sets of first structural features and a second plurality of second feature sets of second structural features are defined. Pairs of first and second feature sets describing first and second n-gons satisfying a congruence criterion are identified. To each pair of first and second feature set a point in a transformation space is assigned. A rigid spatial transformation for registering the first three-dimensional digital structure with the second three-dimensional digital structure is determined using a clustering of the points assigned in the transformation space.

Abstract: The invention relates to a method for configurating a split denture. A digital 3D model of the denture comprising a plurality of teeth is provided. The digital 3D model of the denture is split into a digital 3D model of a base part and a digital 3D model of a teeth part. The base part comprises a first artificial gingiva portion. Further, the base part is configured to support the teeth part. The teeth part comprises the plurality of teeth of the denture and a second gingiva portion. The teeth part is configured to be mounted on the base part. The digital 3D model of the split denture is provided for generating at least one of the base part and the teeth part.

Abstract: The invention relates to a computer-implemented method for adjusting a position of artificial teeth of a denture. A digital 3D model of the denture comprising at least a denture part is provided. The denture part is configured for a jaw of a patient and comprises a dental arch with a plurality of artificial teeth arranged in an artificial gingiva. A deformable gingiva section of the artificial gingiva is defined between the teeth of the plurality of artificial teeth and a fixed gingiva section of the artificial gingiva with a fixed geometrical form. The dental arch is moved as a whole relative to the fixed gingiva section in order to adjust the position of the dental arch. A geometrical form of the deformable gingiva section is deformed due to the moving of the dental arch, whereas the fixed gingiva section maintains the fixed geometrical form.

Abstract: Disclosed is a method for checking a geometric form of a physical dental element using motion tracking and augmented reality. The method comprises a receiving of a three-dimensional digital model comprising a three-dimensional digital dental element, as well as repeatedly: a receiving of optical imaging data from an optical sensor device, a detecting of structural elements within the optical imaging data, a determining of a target position for the three-dimensional digital dental element using the reference points defined by the structural elements, and a controlling of an electronic display device for displaying an augmented reality view on the physical dental element augmented with the three-dimensional digital dental element.

Abstract: The invention relates to a computer-implemented method for restoring a 3D digital defective tooth model of a tooth of a patient. The 3D digital defective tooth model is missing one or more tooth sections. The method comprises receiving a 3D digital teeth model of at least a part of a dentition of a patient comprising the 3D digital defective tooth model. A 3D digital supplemented tooth model of the tooth of the patient is generated. The generating of the 3D digital supplemented tooth model comprises supplementing the 3D digital defective tooth model with one or more filling tooth sections used to fill one or more of the missing tooth sections.

Abstract: The invention relates to a method for a computer-implemented method for configuring a fastening channel through a dental restoration for fastening a retaining means retaining the dental restoration. The method comprises receiving a 3D digital restoration model of the dental restoration with an artificial tooth and a definition of an implant. A relative positioning of the dental restoration relative to the implant is determined. A position of the fastening channel extending from the implant through the artificial tooth is determined. In case the position of the fastening channel violating a set of one or more pre-defined positioning criteria. The position of the fastening channel is automatically adjusted by angulating the fastening channel such that the positioning criteria are satisfied.

Abstract: Disclosed herein is a dental method that comprises receiving a selection of a replacement tooth for a subject. The method further comprises receiving one or more three-dimensional digital tooth models descriptive of one or more teeth of the subject. The method further comprises receiving a generated three-dimensional digital model of the replacement tooth in response to inputting the one or more three-dimensional digital tooth models descriptive of one or more teeth of the subject into a tooth model generating neural network. The tooth model generating neural network comprises an encoder portion and a decoder portion. The encoder portion is configured for outputting a collective feature vector descriptive of the one or more digital tooth models. The tooth model generating neural network further comprises at least one fully connected layer configured to output a latent space vector into the decoder portion in response to receiving the collective feature vector.

Abstract: The invention relates to a method for configurating a split denture. A digital 3D model of the denture comprising a plurality of teeth is provided. The digital 3D model of the denture is split into a digital 3D model of a base part and a digital 3D model of a teeth part. The base part comprises a first artificial gingiva portion. Further, the base part is configured to support the teeth part. The teeth part comprises the plurality of teeth of the denture and a second gingiva portion. The teeth part is configured to be mounted on the base part. The digital 3D model of the split denture is provided for generating at least one of the base part and the teeth part.

Abstract: Disclosed is a computer-implemented method for closing one or more holes in a bottom section of a three-dimensional digital preparation model of a preparation of a tooth. The tooth is prepared for receiving a dental restoration element with a lower limit of the bottom section of the preparation being prepared in form of a stepless edge. The method comprises receiving the three-dimensional digital preparation model of the prepared tooth. One or more holes of the three-dimensional digital preparation model to be closed are detected within the bottom section. A preparation angle used for preparing the bottom section is determined and the detected one or more holes are closed. The closing comprises an extrapolation of the bottom section into the holes using the determined preparation angle.

Abstract: Disclosed herein is a method of dental imaging. The method comprises receiving data descriptive of at least one three-dimensional digital dental element. The at least one three-dimensional digital dental element comprises a defined position relative to a dental articulator. The method further comprises repeatedly: receiving the optical imaging data descriptive of the dental articulator from an optical sensor; receiving the localization data in response to inputting the optical imaging data into a localization module; performing a calculation comprising calculating at least one three-dimensional object aligned to the localization data descriptive of the dental articulator using the defined position of the at least one three-dimensional digital dental element and the localization data descriptive of the dental articulator; and providing a rendering of the at least one three-dimensional object.

Abstract: The invention relates to a method for manufacturing a dental prosthetic assembly. The dental prosthetic assembly comprises a first and a second element. The first element comprises a first connection portion with a reception configured to establish a mechanical connection between the first and the second element by receiving a protrusion of a second connection portion comprised by the second element.

Abstract: The invention relates to a method for providing a physical testing model for testing a fitting of a dental restoration to be hardened before the dental restoration being hardened. The dental restoration is required to fit onto a dental element after being hardened. The method comprises providing a 3D digital model of the dental element. Size of the 3D digital model of the dental element is scaled using a first scaling factor. The first scaling factor depends on an inverse of a second scaling factor quantifying a predicted scaling of the size of the dental restoration to be hardened due to the hardening. The scaling of the 3D digital model of the dental element results in a 3D digital testing model for the testing of the fitting of the dental restoration to be hardened. The 3D digital testing model is provided as a template for manufacturing the physical testing model.

Abstract: The invention relates to method for manufacturing a dental prosthetic assembly. The dental prosthetic assembly comprises a first and a second element. The first element comprises a first connection portion with a reception configured to establish a mechanical connection between the first and the second element by receiving a protrusion of a second connection portion comprised by the second element.

Abstract: The invention relates to a method for manufacturing a dental prosthetic assembly. The dental prosthetic assembly comprises a first and a second element. The first element comprises a first connection portion with a reception configured to establish a mechanical connection between the first and the second element by receiving a protrusion of a second connection portion comprised by the second element.