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Proceedings Paper

Optical pathlengths in dental caries lesions
Author(s): Claudia Mujat; Jaap J. ten Bosch; Aristide C. Dogariu
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Paper Abstract

The average pathlength of light inside dental enamel and incipient lesions is measured and compared, in order to quantitatively confirm the prediction that incipient lesions have higher scattering coefficients that sound enamel. The technique used, called optical pathlength spectroscopy provides experimental access to the pathlength distribution of light inside highly scattering samples. This is desirable for complex biological materials, where current theoretical models are very difficult to apply. To minimize the effects of surface reflections the average pathlength is measured in wet sound enamel and white spots. We obtain values of 367 micrometers and 272 micrometers average pathlength for sound enamel and white spots respectively. We also investigate the differences between open and subsurface lesions, by measuring the change in the pathlength distribution of light as they go from dry to wet.

Paper Details

Date Published: 27 April 2001
PDF: 7 pages
Proc. SPIE 4249, Lasers in Dentistry VII, (27 April 2001); doi: 10.1117/12.424500
Show Author Affiliations
Claudia Mujat, CREOL/Univ. of Central Florida (United States)
Jaap J. ten Bosch, Univ. of Groningen (Netherlands)
Aristide C. Dogariu, CREOL/Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 4249:
Lasers in Dentistry VII
Peter Rechmann; Daniel Fried; Thomas Hennig, Editor(s)

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