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Proceedings Paper

Assessment of dentin remineralization with PS-OCT
Author(s): Saman K. Manesh; Cynthia L. Darling; Daniel Fried
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Paper Abstract

Previous studies have demonstrated that polarization sensitive optical coherence tomography (PS-OCT) can be used to image natural root caries lesions, measure non-destructively the severity of dentin demineralization and determine the efficacy of intervention with anti-caries agents including fluoride and lasers. The objective of this study was to determine if PS-OCT could be used to nondestructively measure the formation of a layer of remineralized dentin on the surface of dentin lesions after exposure to a remineralization solution. In this study images of artificial dentin lesions on extracted human teeth were acquired using PS-OCT after exposure to an artificial demineralizing solution at pH 4.9 for six days and after subsequent exposure to a remineralizing solution at pH 7.0 for 20 days. Polarized light microscopy and microradiography were used to examine histological thin sections from the samples for comparison. PS-OCT successfully measured the formation of a layer of increased mineral content near the lesion surface. PLM and TMR corroborated those results. This study demonstrates the potential use of PS-OCT for the nondestructive measurement of the remineralization of dentin surfaces.

Paper Details

Date Published: 18 February 2009
PDF: 7 pages
Proc. SPIE 7162, Lasers in Dentistry XV, 71620W (18 February 2009); doi: 10.1117/12.816865
Show Author Affiliations
Saman K. Manesh, Univ. of California, San Francisco (United States)
Cynthia L. Darling, Univ. of California, San Francisco (United States)
Daniel Fried, Univ. of California, San Francisco (United States)

Published in SPIE Proceedings Vol. 7162:
Lasers in Dentistry XV
Peter Rechmann; Daniel Fried, Editor(s)

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