Method for modeling an individual dental prosthesis

摘要

Method for modelling an individual dental prosthesis, which includes an abutment, wherein a first geometry is ascertained by a detection device, wherein an auxiliary element is affixed to at least one manipulation implant/implant, and a first data set is determined therefrom. A second data set describing a geometry having at least one manipulation implant/implant without an auxiliary element is ascertained. Using the second data set, which includes no data from auxiliary elements, or using the first and second data sets, a direction of insertion is determined by which a dental prosthesis part is to be pushed onto the abutment. A production method and a system for modelling an individual dental prosthesis and a computer-readable medium having instructions, which, when loaded into a computer, execute the methods A further method is provided for automatically determining a direction of insertion for a dental prosthesis part.

主权项

1. Method for modelling an individual dental prosthesis that comprises an abutment, with the steps comprising:
a) in a model of a residual tooth area to be provided with the dental prosthesis, at least one manipulation implant is affixed that corresponds to an implant in the residual tooth area; b) in the model, an auxiliary element is affixed onto one, several or each manipulation implant, wherein the auxiliary element, together with the manipulation implant, describes the position of the implant in the residual tooth area; c) a first three-dimensional geometry of the model with the at least one auxiliary element is ascertained by scanning with a detection device, and a first data set is determined therefrom, wherein this first data set describes the first three-dimensional geometry; d) a second three-dimensional geometry of the model with the at least one manipulation implant but without, however, the auxiliary element, is ascertained by scanning with the detection device, and a second data set is determined therefrom, wherein this second data set describes the second three-dimensional geometry, and e) by using the second data set or by using the first data set and the second data set, a direction of insertion is determined by which the dental prosthesis part is to be pushed onto the abutment, including determining with the first data set the position of the manipulation implant in the model of the residual tooth area, wherein consequently the position of the implant in the residual tooth area can be determined precisely by the affixed auxiliary element, and determining with the second data set that all areas of the model of the residual tooth area are described.