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Journal of Biomedical Optics • Open Access

Detection of carious lesions utilizing depolarization imaging by polarization sensitive optical coherence tomography
Author(s): Jonas Golde; Florian Tetschke; Julia Walther; Tobias Rosenauer; Franz Hempel; Christian Hannig; Edmund Koch; Lars Kirsten

Paper Abstract

As dental caries is one of the most common diseases, the early and noninvasive detection of carious lesions plays an important role in public health care. Optical coherence tomography (OCT) with its ability of depth-resolved, high-resolution, noninvasive, fast imaging has been previously recognized as a promising tool in dentistry. Additionally, polarization sensitive imaging provides quantitative measures on the birefringent tissue properties and can be utilized for imaging dental tissue, especially enamel and dentin. By imaging three exemplary tooth samples ex vivo with proximal white spot, brown spot, and cavity, we show that the combination of polarization sensitive OCT and the degree of polarization uniformity (DOPU) algorithm is a promising approach for the detection of proximal carious lesions due to the depolarization contrast of demineralized tissue. Furthermore, we investigate different sizes of the DOPU evaluation kernel on the resulting contrast and conclude a suitable value for this application. We propose that DOPU provides an easy to interpret image representation and appropriate contrast for possible future screening applications in early caries diagnostics.

Paper Details

Date Published: 26 January 2018
PDF: 8 pages
J. Biomed. Opt. 23(7) 071203 doi: 10.1117/1.JBO.23.7.071203
Published in: Journal of Biomedical Optics Volume 23, Issue 7
Show Author Affiliations
Jonas Golde, Universitätsklinikum Carl Gustav Carus Dresden (Germany)
Florian Tetschke, Universitätsklinikum Carl Gustav Carus Dresden (Germany)
Julia Walther, Universitätsklinikum Carl Gustav Carus Dresden (Germany)
Tobias Rosenauer, Universitätsklinikum Carl Gustav Carus Dresden (Germany)
Franz Hempel, Universitätsklinikum Carl Gustav Carus Dresden (Germany)
Christian Hannig, Universitätsklinikum Carl Gustav Carus Dresden (Germany)
Edmund Koch, Universitätsklinikum Carl Gustav Carus Dresden (Germany)
Lars Kirsten, Universitätsklinikum Carl Gustav Carus Dresden (Germany)


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