METHOD FOR MANIPULATING A DENTAL VIRTUAL MODEL, METHOD FOR CREATING PHYSICAL ENTITIES BASED ON A DENTAL VIRTUAL MODEL THUS MANIPULATED, AND DENTAL MODELS THUS CREATED

摘要

A 3D virtual model of an intra oral cavity in which at least a part of a finish line of a preparation is obscured is manipulated in virtual space by means of a computer or the like to create, recreate or reconstruct finish line data and other geometrical corresponding to the obscured part. Trimmed virtual models, and trimmed physical models, can then be created utilizing data thus created. The virtual models and/or the physical models may be used in the design and manufacture of copings or of prostheses.

主权项

1. A method for manufacturing a physical dental model, the method comprising:
receiving, at a computer, a virtual model of a dental site comprising dental surfaces, wherein a portion of the dental site is obscured by a material, manipulating, with the computer, the virtual model to create an auxiliary virtual model that includes a virtual representation of the portion of the dental site in which the portion is not obscured by the material; and outputting, by the computer, instructions to a manufacturing machine for creating a physical dental model of the dental site, wherein the physical dental model comprises a representation corresponding to the virtual representation of the portion of the dental site in which the portion is not obscured by the material.