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Proceedings Paper

Analysis of eroded bovine teeth through laser speckle imaging
Author(s): Nelson H. Koshoji; Sandra K. Bussadori; Carolina C. Bortoletto; Marcelo T. Oliveira; Renato A. Prates; Alessandro M. Deana
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Paper Abstract

Dental erosion is a non-carious lesion that causes progressive tooth wear of structure through chemical processes that do not involve bacterial action. Its origin is related to eating habits or systemic diseases involving tooth contact with substances that pose a very low pH. This work demonstrates a new methodology to quantify the erosion by coherent light scattering of tooth surface. This technique shows a correlation between acid etch duration and laser speckle contrast map (LASCA). The experimental groups presented a relative contrast between eroded and sound tissue of 17.8(45)%, 23.4 (68)% 39.2 (40)% and 44.3 (30)%, for 10 min, 20 min, 30 min and 40 min of acid etching, respectively.

Paper Details

Date Published: 24 February 2015
PDF: 6 pages
Proc. SPIE 9306, Lasers in Dentistry XXI, 93060D (24 February 2015); doi: 10.1117/12.2075195
Show Author Affiliations
Nelson H. Koshoji, Univ. Nove de Julho (Brazil)
Sandra K. Bussadori, Univ. Nove de Julho (Brazil)
Carolina C. Bortoletto, Univ. Nove de Julho (Brazil)
Marcelo T. Oliveira, Univ. Nove de Julho (Brazil)
Renato A. Prates, Univ. Nove de Julho (Brazil)
Alessandro M. Deana, Univ. Nove de Julho (Brazil)

Published in SPIE Proceedings Vol. 9306:
Lasers in Dentistry XXI
Peter Rechmann; Daniel Fried, Editor(s)

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