Optical properties of human radicular dentin: ATR-FTIR characterization and dentine tubule direction influence on radicular post adhesion

Jose Quinto Jr.; Claudia B. Zamataro; Carolina Benetti; Derly A. Dias; Alberto Blay; Denise Maria Zezell

doi:10.1117/12.2181162

19 June 2015 Optical properties of human radicular dentin: ATR-FTIR characterization and dentine tubule direction influence on radicular post adhesion

Jose Quinto Jr., Claudia B. Zamataro, Carolina Benetti, Derly A. Dias, Alberto Blay, Denise Maria Zezell

Author Affiliations +

Proceedings Volume 9531, Biophotonics South America; 95311V (2015) https://doi.org/10.1117/12.2181162
Event: SPIE Biophotonics South America, 2015, Rio de Janeiro, Brazil

Abstract

Knowledge of dental structures is essential for understanding of laser interaction and its consequences during adhesion processes. Tubule density in dentin ranges from 4.900 to 90.000 per mm², for diameters from 1 to 3 μm. Light propagation inside the tubules is associated with tubules orientation. To the best of our knowledge, there is no previous work in literature characterizing physical-chemical alterations in dentin. The dentin samples were irradiated with a Er,Cr:YSGG Laser at wavelength 2.78 μm, with an energy density of 9.46 J/cm² , above the ablation threshold. ATRFTIR at wavenumbers 2000 to 700 cm^-1 was used to evaluate the differences among third root region and tubules orientation.

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Jose Quinto Jr., Claudia B. Zamataro, Carolina Benetti, Derly A. Dias, Alberto Blay, and Denise Maria Zezell "Optical properties of human radicular dentin: ATR-FTIR characterization and dentine tubule direction influence on radicular post adhesion", Proc. SPIE 9531, Biophotonics South America, 95311V (19 June 2015); https://doi.org/10.1117/12.2181162

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