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Characterization of dentin and enamel by use of optical coherence tomography

Xiao-Jun Wang, Thomas E. Milner, Johannes F. de Boer, Yi Zhang, David H. Pashley, and J. Stuart Nelson

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Abstract

Optical coherence tomographic images of human dentin and enamel are obtained by use of polarization-sensitive optical coherence tomography. A birefringence effect in enamel (λ = 856 nm) and light propagation along dentinal tubules are observed. The group index of refraction for both dentin and enamel was measured at 1.50 ± 0.02 and 1.62 ± 0.02, respectively.

© 1999 Optical Society of America

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