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Proceedings Paper

SWIR, thermal and CP-OCT imaging probes for the in vivo assessment of the activity of root caries lesions
Author(s): Nai-Yuan Chang; Yihua Zhu; Donald Curtis; Oanh Le; Vincent Yang; Wiliiam A. Fried; Jacob C. Simon; Prajna Banan; Cynthia L. Darling; Daniel Fried
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Paper Abstract

New imaging technologies are needed for the clinical assessment of lesions on root surfaces. It is not sufficient to simply detect caries lesions; methods are needed to assess lesion depth, structural composition and activity to determine if chemical intervention has the potential to be effective and if remineralization has occurred. Lesions were monitored using CP-OCT during lesion dehydration to assess the lesion structure and any shrinkage. Thermal imaging at 6-10 μm wavelengths and short wavelength-IR imaging at 1450-1750-nm were used to monitor thermal emission during lesion dehydration to assess lesion activity. Imaging probes were custom fabricated for clinical use. We present the first clinical results of a small feasibility study employing CP-OCT, thermal and SWIR imaging to assess lesion activity in vivo on thirty test subjects with suspected root caries lesions.

Paper Details

Date Published: 19 February 2020
PDF: 6 pages
Proc. SPIE 11217, Lasers in Dentistry XXVI, 1121708 (19 February 2020);
Show Author Affiliations
Nai-Yuan Chang, Univ. of California, San Francisco (United States)
Yihua Zhu, Univ. of California, San Francisco (United States)
Donald Curtis, Univ. of California, San Francisco (United States)
Oanh Le, Univ. of California, San Francisco (United States)
Vincent Yang, Univ. of California, San Francisco (United States)
Wiliiam A. Fried, Univ. of California, San Francisco (United States)
Jacob C. Simon, Univ. of California, San Francisco (United States)
Prajna Banan, 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. 11217:
Lasers in Dentistry XXVI
Peter Rechmann; Daniel Fried, Editor(s)

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