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Proceedings Paper

Increased spatial resolution for light images of tissues--especially for teeth
Author(s): Abund Ottokar Wist; Steven Lynn Herr; Z. H. Meiksin; Panos P. Fatouros
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Paper Abstract

A new high resolution transillumination technique has been developed to detect small lesions in teeth and in tissues. It uses collimated, narrow light beams synchronized with a highly sensitive receiver to scan the sample. Extracted teeth and tissues have been examined with this technique. The teeth included a variety of conditions, some with caries, some previously restored, and others with metal pins inserted into them. The results show that a small carious lesion as small as 1 mm2 can be detected from either side of the tooth. Cysts and cancerous lesions in tissues were also detected. The new light imaging technique can find carious lesions better than dental x rays, however, the solution of mental pins inside a tooth is less than that of x rays. The technique is totally harmless to teeth and tissues and can be used as often as necessary even during any clinical procedure. The investigation shows that the resolution for carious lesions could be increased further to about 0.1 mm by incorporating presently available new semiconductor devices and that such a device could be designed for clinical oral use.

Paper Details

Date Published: 17 September 1993
PDF: 12 pages
Proc. SPIE 1894, Clinical Applications of Modern Imaging Technology, (17 September 1993); doi: 10.1117/12.154964
Show Author Affiliations
Abund Ottokar Wist, Medical College of Virginia/VCU (United States)
Steven Lynn Herr, Virginia Commonwealth Univ. (United States)
Z. H. Meiksin, International Sensor Corp. (United States)
Panos P. Fatouros, Medical College of Virginia/VCU (United States)

Published in SPIE Proceedings Vol. 1894:
Clinical Applications of Modern Imaging Technology
Abund Ottokar Wist, Editor(s)

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