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 physical tooth models to be mounted to a physical dental arch model, the method comprising:
receiving digital representations of the physical dental arch model and the two or more physical tooth models, wherein the physical dental arch model comprises one or more receiving features and wherein each of the two or more physical tooth models comprises one or more registration features that interface with the one or more receiving features when the two or more physical tooth models are mounted to the physical dental arch model; determining, based on the digital representations, an interference between the two or more physical tooth models when mounted to the physical dental arch model caused by a first configuration of one or more of: (1) the one or more registration features of at least one of the two or more physical tooth models, or (2) the one or more receiving features of the physical dental arch model; and modifying the first configuration to a second different configuration so as to prevent the interference between the two or more physical tooth models when mounted to the physical dental arch model.