Abstract
Measurements of the absolute spatially resolved reflectance and transmittance from dentin slabs were performed using a HeNe laser at λ = 633 mm as source and a CCD camera as detector. Solid phantom slabs were used to test the experimental setup and to enable absolute measurements. The reduced scattering and absorption coefficients were derived by applying a solution of the diffusion theory for a slab geometry as theoretical model. Monte Carlo simulations were used to investigate the validity of the diffusion solution. Compared to other biological tissues large values were found for the reduced scattering coefficient of dry dentin slabs, in which the tubuli were parallel to the slab extension. In addition, we measured a strong dependence of the optical properties on the water content of the dentin slabs. We also found that the anisotropic structure of dentin strongly influences the light propagation and, thus, the derived optical properties.
© 2001 OSA/SPIE
PDF ArticleMore Like This
Matthew R. Jones and Yukio Yamada
OPC379 Advances in Optical Imaging and Photon Migration (BIOMED) 1996
Marco Pilz and Alwin Kienle
6629_17 European Conference on Biomedical Optics (ECBO) 2007
Tobias. J. Beck, Wolfgang Beyer, Thomas Pongratz, Walter Stummer, Raphaela Waidelich, Herbert Stepp, Simon Wagner, and Reinhold Baumgartner
5138_96 European Conference on Biomedical Optics (ECBO) 2003