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
(170.1850) Medical optics and biotechnology : Dentistry
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(260.1440) Physical optics : Birefringence
(290.3030) Scattering : Index measurements
Xiao-Jun Wang, Thomas E. Milner, Johannes F. de Boer, Yi Zhang, David H. Pashley, and J. Stuart Nelson, "Characterization of Dentin and Enamel by use of Optical Coherence Tomography," Appl. Opt. 38, 2092-2096 (1999)