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Journal of Biomedical Optics

Measurement of the refractive index of human teeth by optical coherence tomography
Author(s): Zhuo Meng; X. Steve Yao; Hui Yao; Yan Liang; Tiegen Liu; Yanni Li; Guanhua Wang; Shoufeng Lan
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Paper Abstract

We describe a novel method based on optical coherence tomography (OCT) for the accurate measurement of the refractive index of in vitro human teeth. We obtain the refractive indices of enamel, dentin, and cementum to be 1.631±0.007, 1.540±0.013, and 1.582±0.010, respectively. The profile of the refractive index is readily obtained via an OCT B scan across a tooth. This method can be used to study the refractive index changes caused by dental decay and therefore has great potential for the clinical diagnosis of early dental caries.

Paper Details

Date Published: 1 May 2009
PDF: 4 pages
J. Biomed. Opt. 14(3) 034010 doi: 10.1117/1.3130322
Published in: Journal of Biomedical Optics Volume 14, Issue 3
Show Author Affiliations
Zhuo Meng, Tianjin Univ. (China)
X. Steve Yao, Tianjin Univ. (China)
Hui Yao, Tianjin Stomatological Hospital (United States)
Yan Liang, Tianjin Univ. (China)
Tiegen Liu, Tianjin Univ. (China)
Yanni Li, Tianjin Stomatological Hospital (United States)
Guanhua Wang, Tianjin Stomatological Hospital (United States)
Shoufeng Lan, Tianjin Univ. (China)


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