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27 February 2008 Occlusal caries detection using polarized Raman spectroscopy
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Proceedings Volume 6843, Lasers in Dentistry XIV; 68430L (2008)
Event: SPIE BiOS, 2008, San Jose, California, United States
The tooth enamel, because of its hydroxyapatite composition, must present a Raman spectrum with strong polarization anisotropy. Carious lesions of the enamel will produce an alteration of local symmetry and will increase much more scattering of light. This will reduce the anisotropy of the Raman spectra. Because of the difference between high sensitivity to polarization of the 959 cm-1 Raman peak in sound enamel and low sensitivity in carried enamel, Raman polarized spectroscopy could be a useful method to early detect teeth caries.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
I. Ionita and A. Bulou "Occlusal caries detection using polarized Raman spectroscopy", Proc. SPIE 6843, Lasers in Dentistry XIV, 68430L (27 February 2008);

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