Pilot study on early detection of dental demineralization based on laser induced fluorescence

Laser induced autofluorescence spectroscopy of enamel and teeth at different artificial demineralization stage irradiated by 403 nm semiconductor laser were investigated. The quantitative evaluation parameter of mineral content is built on the basis of the fluorescence characteristic spectrum of 443...

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Bibliographic Details
Published in:Laser physics letters 2010-10, Vol.7 (10), p.752-756
Main Authors: Chen, Q.G., Lin, B., Chen, Z.B., Zhu, H.H., Chen, H.
Format: Article
Language:English
Subjects:
autofluorescence
characteristic spectrum
demineralized teeth
early detection
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optics
Physics
Semiconductor lasers
laser diodes
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Summary:Laser induced autofluorescence spectroscopy of enamel and teeth at different artificial demineralization stage irradiated by 403 nm semiconductor laser were investigated. The quantitative evaluation parameter of mineral content is built on the basis of the fluorescence characteristic spectrum of 443 nm and 526 nm ratio to the total fluorescence integral. In the end, the dependence of characteristic spectrum on the excitation light power was experimentally investigated. The results reveal that at least 10 mW power is necessary to stimulate the featured spectrum. (© 2010 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)
ISSN:1612-2011
1612-202X
DOI:10.1002/lapl.201010053