
Proceedings Paper
Imaging natural occlusal caries lesions with optical coherence tomographyFormat | Member Price | Non-Member Price |
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Paper Abstract
Several studies have demonstrated that polarization-sensitive optical coherence tomography (PS-OCT) can be used to
nondestructively measure the severity of demineralization in the important occlusal surfaces. The purpose of this study
was to assess the potential of PS-OCT and OCT methods for the measurement of the depth of natural occlusal carious
lesions. Teeth were screened for potential occlusal lesions using near infrared imaging (NIR). A PS-OCT system
operating at 1310-nm was used to acquire polarization resolved images of the area of interest on the occlusal surface.
The teeth were serial sectioned to 200 μm thickness and examined with polarized light microscopy (PLM) and
Transverse Microradiography (TMR) for comparison. The lesion depth measured nondestructively with PS-OCT was
compared to the lesion depth measured with PLM and TMR to assess the performance of these methods and determine
if polarization sensitivity is required. The lesion depth measured using OCT correlated well with the lesion depths
measured with TMR and PLM. Although polarization sensitivity provided better contrast it was not necessary to have
polarization sensitivity to identify deep occlusal lesions.
Paper Details
Date Published: 5 March 2010
PDF: 7 pages
Proc. SPIE 7549, Lasers in Dentistry XVI, 75490N (5 March 2010); doi: 10.1117/12.849344
Published in SPIE Proceedings Vol. 7549:
Lasers in Dentistry XVI
Peter Rechmann D.D.S.; Daniel Fried, Editor(s)
PDF: 7 pages
Proc. SPIE 7549, Lasers in Dentistry XVI, 75490N (5 March 2010); doi: 10.1117/12.849344
Show Author Affiliations
Shane M. Douglas, Univ. of California, San Francisco (United States)
Daniel Fried, Univ. of California, San Francisco (United States)
Daniel Fried, Univ. of California, San Francisco (United States)
Cynthia L. Darling, Univ. of California, San Francisco (United States)
Published in SPIE Proceedings Vol. 7549:
Lasers in Dentistry XVI
Peter Rechmann D.D.S.; Daniel Fried, Editor(s)
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