Transillumination and reflectance probes for in vivo near-IR
imaging of dental caries

Jacob C. Simon; Seth A. Lucas; Michal Staninec; Henry Tom; Kenneth H. Chan; Cynthia L. Darling; Daniel Fried

doi:10.1117/12.2045630

18 February 2014 Transillumination and reflectance probes for in vivo near-IR imaging of dental caries

Jacob C. Simon, Seth A. Lucas, Michal Staninec, Henry Tom, Kenneth H. Chan, Cynthia L. Darling, Daniel Fried

Proceedings Volume 8929, Lasers in Dentistry XX; 89290D (2014) https://doi.org/10.1117/12.2045630
Event: SPIE BiOS, 2014, San Francisco, California, United States

Abstract

Previous studies have demonstrated the utility of near infrared (NIR) imaging for caries detection employing transillumination and reflectance imaging geometries. Three intra-oral NIR imaging probes were fabricated for the acquisition of in vivo, real time videos using a high definition InGaAs SWIR camera and near-IR broadband light sources. Two transillumination probes provide occlusal and interproximal images using 1300-nm light where water absorption is low and enamel manifests the highest transparency. A third reflectance probe utilizes cross polarization and operates at >1500-nm, where water absorption is higher which reduces the reflectivity of sound tissues, significantly increasing lesion contrast. These probes are being used in an ongoing clinical study to assess the diagnostic performance of NIR imaging for the detection of caries lesions in teeth scheduled for extraction for orthodontic reasons.

Citation Download Citation

Jacob C. Simon, Seth A. Lucas, Michal Staninec, Henry Tom, Kenneth H. Chan, Cynthia L. Darling, and Daniel Fried "Transillumination and reflectance probes for in vivo near-IR imaging of dental caries", Proc. SPIE 8929, Lasers in Dentistry XX, 89290D (18 February 2014); https://doi.org/10.1117/12.2045630

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