Evaluation of human dentine demineralization of yellow race by Raman spectra

Zhenlin Zhan; Wenqing Guo; Haishan Liu; Xianzeng Zhang; Shusen Xie

doi:10.1117/12.999399

11 December 2012 Evaluation of human dentine demineralization of yellow race by Raman spectra

Zhenlin Zhan, Wenqing Guo, Haishan Liu, Xianzeng Zhang, Shusen Xie

Proceedings Volume 8553, Optics in Health Care and Biomedical Optics V; 85531S (2012) https://doi.org/10.1117/12.999399
Event: Photonics Asia, 2012, Beijing, China

Abstract

The aim of this study is to evaluate the demineralization process in human dentine using Raman spectroscopy (RS). Nine human molars from Chinese subjects were cut into twelve tooth sections. The sections were painted with an acidresistant varnish leaving one dentine surface exposed and then immersed into 0.3% citric acid to simulate the oral natural demineralization. According to the acid-etch time, specimens were randomly divided into four groups: Ⅰ5 min, Ⅱ 10 min, Ⅲ 20 min and Ⅳ 40 min. Raman spectra were measured before and after each treatment. The result showed that no new bands, bands shifts, or disappearance of bands occurred in the whole process. However, the peak intensities of inorganic constituents decreased with the increase of acid-etch time, while the trends of organic constituents were opposite. In conclusion, RS could be able to efficiently monitor the demineralization status of human dentine.

Citation Download Citation

Zhenlin Zhan, Wenqing Guo, Haishan Liu, Xianzeng Zhang, and Shusen Xie "Evaluation of human dentine demineralization of yellow race by Raman spectra", Proc. SPIE 8553, Optics in Health Care and Biomedical Optics V, 85531S (11 December 2012); https://doi.org/10.1117/12.999399

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