Analysis of eroded bovine teeth through laser speckle imaging

Nelson H. Koshoji; Sandra K. Bussadori; Carolina C. Bortoletto; Marcelo T. Oliveira; Renato A. Prates; Alessandro M. Deana

doi:10.1117/12.2075195

24 February 2015 Analysis of eroded bovine teeth through laser speckle imaging

Nelson H. Koshoji, Sandra K. Bussadori, Carolina C. Bortoletto, Marcelo T. Oliveira, Renato A. Prates, Alessandro M. Deana

Author Affiliations +

Proceedings Volume 9306, Lasers in Dentistry XXI; 93060D (2015) https://doi.org/10.1117/12.2075195
Event: SPIE BiOS, 2015, San Francisco, California, United States

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.

Citation Download Citation

Nelson H. Koshoji, Sandra K. Bussadori, Carolina C. Bortoletto, Marcelo T. Oliveira, Renato A. Prates, and Alessandro M. Deana "Analysis of eroded bovine teeth through laser speckle imaging", Proc. SPIE 9306, Lasers in Dentistry XXI, 93060D (24 February 2015); https://doi.org/10.1117/12.2075195

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