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Proceedings Paper

Efficient free-form surface representation with application in orthodontics
Author(s): Sameh M. Yamany; Ahmed M. El-Bialy
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Paper Abstract

Orthodontics is the branch of dentistry concerned with the study of growth of the craniofacial complex. The detection and correction of malocclusion and other dental abnormalities is one of the most important and critical phases of orthodontic diagnosis. This paper introduces a system that can assist in automatic orthodontics diagnosis. The system can be used to classify skeletal and dental malocclusion from a limited number of measurements. This system is not intended to deal with several cases but is aimed at cases more likely to be encountered in epidemiological studies. Prior to the measurement of the orthodontics parameters, the position of the teeth in the jaw model must be detected. A new free-form surface representation is adopted for the efficient and accurate segmentation and separation of teeth from a scanned jaw model. THe new representation encodes the curvature and surface normal information into a 2D image. Image segmentation tools are then sued to extract structures of high/low curvature. By iteratively removing these structures, individual teeth surfaces are obtained.

Paper Details

Date Published: 8 March 1999
PDF: 10 pages
Proc. SPIE 3640, Three-Dimensional Image Capture and Applications II, (8 March 1999); doi: 10.1117/12.341053
Show Author Affiliations
Sameh M. Yamany, Univ. of Louisville (United States)
Ahmed M. El-Bialy, Cairo Univ. (Egypt)


Published in SPIE Proceedings Vol. 3640:
Three-Dimensional Image Capture and Applications II
Joseph H. Nurre; Brian D. Corner, Editor(s)

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