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Proceedings Paper

Reflection of laser light from a human enamel-dentin structure
Author(s): Elena V. Stoykova; Dimitar G. Slavov; Tzonko Uzunov
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Paper Abstract

In the present work we report the results of the measurement of the angular distribution of laser light reflected from a rough tooth surface and of Monte Carlo simulation of the 3-D process of photons migration in a two-layered human enamel- dentin structure. The measured reflected patterns are as a whole asymmetric and more spread than the calculated by the simulation. The measured total diffusely reflected power reaches 3 - 20% from the irradiating power. An increase in the total absorbed energy as well as in the spread of absorption is observed below the enamel-dentin interface. The scattering anisotropy affects in a different way the absorption below the tooth surface: the highly forward peaked phase function leads to decrease of absorption just below the air-enamel boundary and rise of absorption below the enamel-dentin boundary.

Paper Details

Date Published: 9 April 2001
PDF: 5 pages
Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); doi: 10.1117/12.425178
Show Author Affiliations
Elena V. Stoykova, Institute of Electronics (Bulgaria)
Dimitar G. Slavov, Institute of Electronics (Bulgaria)
Tzonko Uzunov, Sofia Medical Univ. (Bulgaria)

Published in SPIE Proceedings Vol. 4397:
11th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Stefka Cartaleva, Editor(s)

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