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Proceedings Paper

Methods for monitoring erosion using optical coherence tomography
Author(s): Kenneth H. Chan; Andrew C. Chan; Cynthia L. Darling; Daniel Fried
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Paper Abstract

Since optical coherence tomography is well suited for measuring small dimensional changes on tooth surfaces it has great potential for monitoring tooth erosion. The purpose of this study was to explore different approaches for monitoring the erosion of enamel. Application of an acid resistant varnish to protect the tooth surface from erosion has proven effective for providing a reference surface for in vitro studies but has limited potential for in vivo studies. Two approaches which can potentially be used in vivo were investigated. The first approach is to measure the remaining enamel thickness, namely the distance from the tooth surface to the dentinal-enamel junction (DEJ). The second more novel approach is to irradiate the surface with a carbon dioxide laser to create a reference layer which resists erosion. Measuring the remaining enamel thickness proved challenging since the surface roughening and subsurface demineralization that commonly occurs during the erosion process can prevent resolution of the underlying DEJ. The areas irradiated by the laser manifested lower rates of erosion compared to the non-irradiated areas and this method appears promising but it is highly dependent on the severity of the acid challenge.

Paper Details

Date Published: 25 March 2013
PDF: 6 pages
Proc. SPIE 8566, Lasers in Dentistry XIX, 856606 (25 March 2013); doi: 10.1117/12.2011013
Show Author Affiliations
Kenneth H. Chan, Univ. of California, San Francisco (United States)
Andrew C. Chan, 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. 8566:
Lasers in Dentistry XIX
Peter Rechmann; Daniel Fried, Editor(s)

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