High contrast reflectance imaging  at 1950-nm for the assessment of lesion activity on extracted teeth

John Tressel; Marwa Abdelaziz; Daniel Fried

doi:10.1117/12.2584909

5 March 2021 High contrast reflectance imaging at 1950-nm for the assessment of lesion activity on extracted teeth

John Tressel, Marwa Abdelaziz, Daniel Fried

Proceedings Volume 11627, Photonic Therapeutics and Diagnostics in Dentistry, Head and Neck Surgery, and Otolaryngology; 116270P (2021) https://doi.org/10.1117/12.2584909
Event: SPIE BiOS, 2021, Online Only

Conference Poster

Abstract

Changes in the reflectivity of lesions on the proximal surfaces of extracted human teeth were measured at 1500-2340-nm and at 1950-nm as they were dried with air. An extended range tungsten-halogen lamp with a long pass filter (1500-2340-nm) and a broadband ASE source centered near the peak of the water-absorption band at 1950-nm were used as light sources and an extended range InGaAs camera (1000-2340-nm) was used to acquire reflected light images as the samples were dried with air. SWIR light at 1950-nm yields extremely high contrast of demineralization and appears to be the optimum wavelength for the assessment of lesion activity on tooth coronal surfaces.

Conference Presentation

Citation Download Citation

John Tressel, Marwa Abdelaziz, and Daniel Fried "High contrast reflectance imaging at 1950-nm for the assessment of lesion activity on extracted teeth", Proc. SPIE 11627, Photonic Therapeutics and Diagnostics in Dentistry, Head and Neck Surgery, and Otolaryngology, 116270P (5 March 2021); https://doi.org/10.1117/12.2584909

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