[Establishment of artificial-tooth three-dimensional coordinates based on dental anatomic concepts].

Zhonghua Kou Qiang Yi Xue Za Zhi 2006 Nov;41(11):684-6

Research Center of Engineering and Technology for Dental Computing, Ministry of Health, Peking University School and Hospital of Stomatology, Beijing 100081, China.

Objective: To establish a three-dimensional (3-D) descartes coordinates of artificial teeth based on concepts of dental anatomy and to obtain their geometric parameters.

Methods: Using the 3-D reverse engineering software, artificial-tooth coordinates were defined based on their anatomic concepts which included long axis, mesiodistal and buccolingual directions, and occlusal plane. Some geometric parameters, such as mesiodistal and buccolingual dimensions, height and obliquity of dental cusp, were measured.

Results: The 3-D coordinates of 28 artificial teeth were established and geometric parameters in coordinates were obtained.

Conclusions: The definition of artificial-tooth coordinates can be made using mathematic language based on dental anatomic concepts, which is the basal work of complete denture computer-aided design (CAD).

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November 2006
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