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Proceedings Paper

Detecting cracks in teeth using ultrasonic excitation and infrared imaging
Author(s): Xiaoyan Han; Lawrence D. Favro; Robert L. Thomas
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Paper Abstract

We describe a new technique, Thermosonics, that can be used to detect cracks in teeth. This technique was initially invented and developed for finding cracks in industrial and aerospace applications. The thermosonics technique employs a single short pulse (typically tens of milliseconds) of ultrasound excitation combined with infrared imaging. Ultrasonic waves vibrate the target material. This vibration causes rubbing and clapping between faying surfaces of any cracks which are present, resulting in a temperature rise around the cracks. An infrared camera is used to image the temperature distribution during and after the ultrasound excitation. Thus, cracks in teeth can be detected. Although this technique is still under development, it shows promise for clinical use by dentists.

Paper Details

Date Published: 15 June 2001
PDF: 4 pages
Proc. SPIE 4256, Biomedical Optoacoustics II, (15 June 2001); doi: 10.1117/12.429316
Show Author Affiliations
Xiaoyan Han, Wayne State Univ. (United States)
Lawrence D. Favro, Wayne State Univ. (United States)
Robert L. Thomas, Wayne State Univ. (United States)

Published in SPIE Proceedings Vol. 4256:
Biomedical Optoacoustics II
Alexander A. Oraevsky, Editor(s)

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