EXOCAD GMBH

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.

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.

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 ).

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.

Disclosed is a computer-implemented method for determining dental implant positions for insertion into a patient’s jaw. The method comprises receiving a three-dimensional digital jaw model and receiving a number of dental implants to be inserted. A preset indicator, which selects an implant library preset based on the number of implants, is also received. These implant library presets, assigned to specific numbers of implants, comprise area indicators for optimal jaw areas for implant insertion. Using the selected implant library preset and the digital jaw model, a set of dental implant parameters defining the positions of the implants relative to the jaw model is determined.

The invention relates to a dental arch positioning setup comprising a full dental arch with a gingiva section and a support base. The support base is configured to support and position the full dental arch with the gingiva section on a patient's edentulous jaw. An occlusal surface of the support base comprises a cutout for the full dental arch with the gingiva section. The cutout has a cross-section larger than a cross-section of the full dental arch with the gingiva section. A plurality of connecting elements holds the full dental arch with the gingiva section in position over the cutout.

The invention relates to a try-in denture base comprising one or more receptions for receiving basal sections of artificial teeth. A first reception is configured to receive two or more basal sections of two or more artificial teeth. A reception volume provided by the first reception is larger than a combination of basal volumes of the two or more basal sections of the two or more artificial teeth to be received. The first reception forms a continuous open space configured to enable a relative movement of the two or more basal sections of the two or more artificial teeth within the first reception towards and away from each other.

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 ).

Disclosed is a computer-implemented method for adjusting two or more three-dimensional digital tooth models of a tooth set of three-dimensional digital tooth models of a jaw. The tooth set is a tooth set for a dental restoration. The method comprises receiving a three-dimensional digital dentition model, pairing a first and second three-dimensional digital tooth model of the tooth set, receiving an input defining a first transformation of the first three-dimensional digital tooth model, determining for the first transformation a first measure of an additional first shape-deforming, determining a second transformation of the second three-dimensional digital tooth model, determining for the second transformation a second measure of an additional second shape-deforming, determining a largest one of the two shape-deforming adjustments comprising a largest one of the two measures, adjusting the first and second three-dimensional digital tooth model.

Disclosed is a computer-implemented method for adjusting an arrangement of a plurality of three-dimensional digital tooth models for a dental restoration. The method comprises selecting at least one of the three-dimensional digital tooth models, which is paired with a corresponding three-dimensional digital tooth model. A first calculation of a first adjustment of a geometric form of the selected tooth model is performed based on the second input defining a modification. The first adjustment is applied to the selected tooth model. A second calculation of a mapped adjustment of the geometric form of the paired corresponding tooth model is performed based on the second input or the first calculation. The mapped adjustment is based on a replica of the first adjustment adjusted relative to a local coordinate system of the paired corresponding tooth model and applied to the paired corresponding tooth model. The resulting adjusted three-dimensional digital denture model is provided for manufacturing.