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Simon JC, Darling CL, Fried D. A system for simultaneous near-infrared reflectance and transillumination imaging of occlusal carious lesions. Proc SPIE Int Soc Opt Eng. 2016;9692doi: 10.1117/12.2218656.
Simon, J. C., Darling, C. L., & Fried, D. (2016). A system for simultaneous near-infrared reflectance and transillumination imaging of occlusal carious lesions. Proceedings of SPIE--the International Society for Optical Engineering, 9692. https://doi.org/10.1117/12.2218656
Simon, Jacob C, et al. "A system for simultaneous near-infrared reflectance and transillumination imaging of occlusal carious lesions." Proceedings of SPIE--the International Society for Optical Engineering vol. 9692 (2016). doi: https://doi.org/10.1117/12.2218656
Simon JC, Darling CL, Fried D. A system for simultaneous near-infrared reflectance and transillumination imaging of occlusal carious lesions. Proc SPIE Int Soc Opt Eng. 2016 Feb 13;9692. doi: 10.1117/12.2218656. Epub 2016 Feb 29. PMID: 27006524; PMCID: PMC4799999.
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Proc SPIE Int Soc Opt Eng. 2016 Feb 13;9692. doi: 10.1117/12.2218656. Epub 2016 Feb 29.

A system for simultaneous near-infrared reflectance and transillumination imaging of occlusal carious lesions.

Proceedings of SPIE--the International Society for Optical Engineering

Jacob C Simon, Cynthia L Darling, Daniel Fried

Affiliations

  1. University of California, San Francisco, San Francisco, CA 94143-0758.

PMID: 27006524 PMCID: PMC4799999 DOI: 10.1117/12.2218656

Abstract

Clinicians need technologies to improve the diagnosis of questionable occlusal carious lesions (QOC's) and determine if decay has penetrated to the underlying dentin. Assessing lesion depth from near-infrared (NIR) images holds great potential due to the high transparency of enamel and stain to NIR light at λ=1300-1700-nm, which allows direct visualization and quantified measurements of enamel demineralization. Unfortunately, NIR reflectance measurements alone are limited in utility for approximating occlusal lesion depth >200-μm due to light attenuation from the lesion body. Previous studies sought to combine NIR reflectance and transillumination measurements taken at λ=1300-nm in order to estimate QOC depth and severity. The objective of this study was to quantify the change in lesion contrast and size measured from multispectral NIR reflectance and transillumination images of natural occlusal carious lesions with increasing lesion depth and severity in order to determine the optimal multimodal wavelength combinations for estimating QOC depth. Extracted teeth with varying amounts of natural occlusal decay were measured using a multispectral-multimodal NIR imaging system at prominent wavelengths within the λ=1300-1700-nm spectral region. Image analysis software was used to calculate lesion contrast and area values between sound and carious enamel regions.

Keywords: detection; multimodal; near-IR imaging; occlusal carries; reflectance; transillumination

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