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Proceedings Paper

Blue-laser-diode-excited fluorescence spectroscopy of natural carious lesions
Author(s): John M. Girkin; Christel Rousseau; Andrew F. Hall; Ronnie Strang; C. John Whitters; Steve L. Creanor; Adriana Cribeiro
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Paper Abstract

We report on the use of a blue laser diode to excite natural fluorescence from a range of dental samples. Sixty teeth with naturally occurring lesions were examined. The lesions were classified on visual inspection as falling into three classes as shiny lesions, dull lesions and brown lesions. The resulting fluorescence was then examined using a fibre optically coupled spectrometer in a series of wavelength bands. By examining the intensity ratios in the two wavelength bands 480-500nm and 620 to 640nm we were able to classify the lesion types and thus provide a quantifiable measurement of lesion types. This method has application for detection of dental caries as well as demonstrating potential application to evaluate lesions which may represent different degrees of caries activity.

Paper Details

Date Published: 28 May 2004
PDF: 6 pages
Proc. SPIE 5313, Lasers in Dentistry X, (28 May 2004); doi: 10.1117/12.525663
Show Author Affiliations
John M. Girkin, Univ. of Strathclyde (United Kingdom)
Christel Rousseau, Univ. of Strathclyde (United Kingdom)
Andrew F. Hall, Univ. of Glasgow (United Kingdom)
Ronnie Strang, Univ. of Glasgow (United Kingdom)
C. John Whitters, Univ. of Glasgow (United Kingdom)
Steve L. Creanor, Univ. of Glasgow (United Kingdom)
Adriana Cribeiro, Univ. de Sao Paulo (Brazil)

Published in SPIE Proceedings Vol. 5313:
Lasers in Dentistry X
Peter Rechmann; Daniel Fried; Thomas Hennig, Editor(s)

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