Blue laser diode excited fluorescence spectroscopy of natural carious lesions

Girkin, J.M., Rousseau, C., Hall, A.F., Strang, R., Whitters, C.J., Creanor, S.L. and Riberio, A. (2004) Blue laser diode excited fluorescence spectroscopy of natural carious lesions. Proceedings of the SPIE: The International Society for Optical Engineering, 5313, 1 -6. (doi: 10.1117/12.525663)

Abstract

We report on the use of a blue laser diode to excite natural fluorescence from a range of dentalsamples. Sixty teeth with naturally occurring lesions were examined. The lesions were classified onvisual inspection as falling into three classes as shiny lesions, dull lesions and brown lesions. Theresulting fluorescence was then examined using a fibre optically coupled spectrometer in a series ofwavelength bands. By examining the intensity ratios in the two wavelength bands 480-500nm and620 to 640nm we were able to classify the lesion types and thus provide a quantifiable measurementof lesion types. This method has application for detection of dental caries as well as demonstratingpotential application to evaluate lesions which may represent different degrees of caries activity.

• Item Type: Articles
• Additional Information: Presented at the SPIE Lasers in Dentistry X Conference,25 January 2004, San Jose, CA, USA
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Creanor, Dr Stephen and Girkin, Prof John and Strang, Dr Ronnie
• Authors: Girkin, J.M., Rousseau, C., Hall, A.F., Strang, R., Whitters, C.J., Creanor, S.L., and Riberio, A.
• Subjects: R Medicine > RK Dentistry
• College/School: College of Medical Veterinary and Life Sciences; College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School
• Journal Name: Proceedings of the SPIE: The International Society for Optical Engineering
• Publisher: SPIE - The International Society for Optical Engineering
• ISSN: 0277-786X