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Proceedings Paper

Visualization and analysis of occlusion for human jaws using a "functionally generated path"
Author(s): Karol Myszkowski; Jens Herder; Tosiyasu L. Kunii; Masumi Ibusuki
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Paper Abstract

Dynamic characteristics of occlusion during lower jaw motion are useful in the diagnosis of jaw articulation problems and in computer-aided design/ manufacture of teeth restorations. The Functionally Generated Path (FGP), produced as a surface which envelops the actual occlusal surface of the moving opponent jaw, can be used for compact representation of dynamic occlusal relations. In traditional dentistry FGP is recorded as a bite impression in a patient's mouth. We propose an efficient computerized technique for FGP reconstruction and validate it through implementation and testing. The distance maps between occlusal surfaces of jaws, calculated for multiple projection directions and accumulated for mandibular motion, provide information for FGP computation. Rasterizing graphics hardware is used for fast calculation of the distance maps. Real-world data are used: the scanned shape of teeth and the measured motion of the lower jaw. We show applications of FGP to analysis of the occlusion relations and occlusal surface design for restorations.

Paper Details

Date Published: 8 March 1996
PDF: 8 pages
Proc. SPIE 2656, Visual Data Exploration and Analysis III, (8 March 1996); doi: 10.1117/12.234684
Show Author Affiliations
Karol Myszkowski, Univ. of Aizu (Japan)
Jens Herder, Univ. of Aizu (Japan)
Tosiyasu L. Kunii, Univ. of Aizu (Japan)
Masumi Ibusuki, Fifty Limited Co. and Sannou Clinic (Japan)

Published in SPIE Proceedings Vol. 2656:
Visual Data Exploration and Analysis III
Georges G. Grinstein; Robert F. Erbacher, Editor(s)

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