PREVENTING INTERFERENCE BETWEEN TOOTH MODELS

摘要

Systems and methods are disclosed to prevent interference between two physical tooth models in a physical dental arch model by acquiring the coordinates of a plurality of points on the surfaces of each of the two physical tooth models and digitally representing the surfaces of each of the two physical tooth models by a mesh of points in three dimensions using the acquired coordinates. The meshes representing the surfaces of the two physical tooth models intersect at least at one point to form an overlapping portion. The method also includes calculating the depth of the overlapping portion between the two meshes to quantify the interference of the two physical tooth models.

主权项

1. A method for determining and preventing interference between two or more tooth models to be mounted to a dental arch model, the method comprising:
receiving a digital representation of a dental arch model, wherein the digital representation of the dental arch model comprises one or more receiving features;receiving digital representations of two or more tooth models, wherein each of the digital representations of two or more tooth models comprises one or more registration features that interface with the one or more receiving features;digitally mounting the two or more digital representations of tooth models to the digital representation of the dental arch model in a first configuration;
determining an interference between the digital representations of two or more tooth models when mounted to the digital representation of dental arch model in the first configuration; and modifying the first configuration to a second different configuration such that the interference between the digital representations of the two or more tooth models when mounted to the digital representation of the dental arch model.