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There has been a great demand for the artificial teeth prostheses that are made of materials sintered at 1500 o C, such as Zirconia ceramic. It is, however, very difficult for dental technicians to manually fabricate the prostheses with such materials since their degree of strength is very high. For that reason, the prostheses of strong materials have been fabricated by using CNC (computer numerical control) machines. The most important subject in the CNC fabrication is how accurately the prostheses can be modeled in three-dimensional space according to dentists’ requirements. In this paper, we propose effective methods for modeling single cores, such as single caps and Conus cores, which are the principal ones of the artificial teeth prostheses. Our approach employs the 2D Minkowski sum, a developed ZMap algorithm, and other geometric techniques such as the tiling of contours. We also present and analyze the 3D visual examples of the single cores modeled by the proposed methods.

An Effective Modeling of Single Cores Prostheses Using Geometric Techniques