首页> 外文会议>Conference on Lasers in Dentistry; 20080120; San Jose,CA(US) >Occlusal caries detection using polarized Raman spectroscopy
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Occlusal caries detection using polarized Raman spectroscopy

机译:使用偏振拉曼光谱法检测龋齿

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摘要

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.
机译:牙釉质由于其羟基磷灰石组成,必须呈现出具有强极化各向异性的拉曼光谱。牙釉质的龋损将产生局部对称性的变化,并将增加更多的光散射。这将减小拉曼光谱的各向异性。由于声音搪瓷的959 cm〜(-1)拉曼峰对极化的高灵敏度与携带的搪瓷的对极化的低灵敏度之间的差异,拉曼偏振光谱法可能是一种早期检测龋齿的有用方法。

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