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Proceedings Paper

Applications Of Interferometry And Optical Metrology In Dentistry
Author(s): Bruce R. Altschuler
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Paper Abstract

Techniques in nondestructive testing may be suitably modified for use in dental research. Described are dental applications of real-time holographic interferometry and laser-optical topographic mapping. Dentistry has depended upon physical replicas, such as plaster casts and models, to duplicate the human dentition for the diagnosis of oral pathology, and for the fabrication of dental prostheses. The application of modern optical techniques for remote measurement may provide alternate improved treatment methodologies, including the acquisition of data suitable for computer analysis and numerical controlled automated prostheses fabrication. Interferometric fringes may be generated, and perceived in real-time, by deforming or displacing a dental object upon which is superposed the holographically reconstructed virtual image of the object in its original condition. Various designs of removable partial denture prostheses frameworks were stressed while seated on models of the human dentition. Fringe patterns were generated in a repeatable sequence during intermittent localized stressing of the prostheses, and were simultaneously recorded using a low-light-level video system. Applications of intra-oral topographic mapping using laser optically generated grids, and examples of numerical controlled milling of replicas of tooth surfaces, are briefly described.

Paper Details

Date Published: 20 January 1977
PDF: 7 pages
Proc. SPIE 0089, Applications of Optics in Medicine and Biology, (20 January 1977); doi: 10.1117/12.955030
Show Author Affiliations
Bruce R. Altschuler, USAF School of Aerospace Medicine (United States)

Published in SPIE Proceedings Vol. 0089:
Applications of Optics in Medicine and Biology
Robin E. Herron, Editor(s)

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