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Laser induced fluorescence of dental cariesSignificant differences between the optical spectra taken from sound regions of teeth and carious regions have been observed. These differences appear both in absorption and in laser induced fluorescence spectra. Excitation by the 488 nm line of an argon ion laser beam showed a peak in the emission intensity around 553 nm for the sound dental material while the emission peak from the carious region was red-shifted by approximately 40 nm. The relative absorption of carious region was significantly higher at 488 nm; however its fluorescence intensity peak was lower by an order of magnitude compared to the sound tooth. Implications of these results for a safe, reliable and early detection of dental caries are discussed.
Document ID
19930066511
Document Type
Conference Proceedings
Authors
Albin, S. (Old Dominion Univ. Norfolk, VA, United States)
Byvik, C. E. (NASA Langley Research Center Hampton, VA, United States)
Buoncristiani, A. M. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1988
Subject Category
LASERS AND MASERS
Distribution Limits
Public
Copyright
Other