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Proceedings Paper

Laser ultrasound characterization of normal and decayed teeth by measuring elastic properties of surface layers
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Paper Abstract

We firstly investigate the mechanic and acoustic properties of human teeth by using the laser generation of surface acoustic wave (SAW) technique. The materials investigated included normal and decayed teeth, which have the same grain size and different thickness, are used as the samples. The tissue responds to the laser-induced stress by thermoelastic expansion. We can obtain the shape of acoustic pulse and the phase velocity was determined for the teeth system and extract information on the teeth thickness, density, and transverse sound velocity that could be used as diagnostic parameters.

Paper Details

Date Published: 18 February 2011
PDF: 12 pages
Proc. SPIE 7897, Optical Interactions with Tissue and Cells XXII, 78971K (18 February 2011); doi: 10.1117/12.868322
Show Author Affiliations
Yasser H. El-Sharkawy, Egyptian Armed Forces (Egypt)
Ashraf F. ElSherif, Egyptian Armed Forces (Egypt)

Published in SPIE Proceedings Vol. 7897:
Optical Interactions with Tissue and Cells XXII
E. Duco Jansen; Robert J. Thomas, Editor(s)

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