Transmission spectra of teeth in the visible to near infrared

Steven Lynn Herr; John D. Harbour; Timothy S. Sherwood; Abund Ottokar Wist

doi:10.1117/12.176564

26 May 1994 Transmission spectra of teeth in the visible to near infrared

Steven Lynn Herr, John D. Harbour, Timothy S. Sherwood, Abund Ottokar Wist

Proceedings Volume 2132, Clinical Applications of Modern Imaging Technology II; (1994) https://doi.org/10.1117/12.176564
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Investigations of new transillumination techniques have created a need for detailed transmission studies of teeth and tissues. Recent results have shown that light imaging of extracted teeth can identify small (1 mm² cross-section) caries in teeth by raster scanning using helium-neon laser light and a post collimated in-line detector. Preliminary frequency (wavelength) dependent transmission studies have been carried out from the visible to the near infrared spectral regions on the dentin of a slice of an extracted tooth 1.85 mm thick. These preliminary results show that in the region from 5,000 to 20,000 cm^-1 the dentin of an extracted, healthy, human tooth has a transmission of between 2.5 and 5.5 percent, indicating that the total attenuation coefficient is between 16 and 19.5 cm^-1.

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Steven Lynn Herr, John D. Harbour, Timothy S. Sherwood, and Abund Ottokar Wist "Transmission spectra of teeth in the visible to near infrared", Proc. SPIE 2132, Clinical Applications of Modern Imaging Technology II, (26 May 1994); https://doi.org/10.1117/12.176564

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