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Proceedings Paper

Tooth defect analysis with laser pulse excitation and laser Doppler vibrometry: thermal analysis of the excitation
Author(s): Paolo Castellini; Gian Marco Revel; Lorenzo Scalise
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Paper Abstract

Thermal effects caused by 532 nm Nd:YAG laser pulses on human tooth surface are investigated using an IR high frame rate (60 Hz) detector (256x 256 elements, Indium Antimonide, with 3-5 μm spectral bandwidth). Measurements of the temperature on a reference line of the tooth surface during exposure to laser pulses of 0.5 W of power, with time amplitude of 12 ns and 10 Hz of frequency repetition are performed. Images and maps of temperature of the human to the surface are shown during laser treatment. Results are discussed with particular reference to the possibility to evaluate thermal effects of pulsed lasers of frequent use in dentistry and to the application of such lasers as excitation sources for non- destructive defect analysis of human teeth by laser Doppler vibrometry.

Paper Details

Date Published: 19 May 1999
PDF: 11 pages
Proc. SPIE 3593, Lasers in Dentistry V, (19 May 1999); doi: 10.1117/12.348344
Show Author Affiliations
Paolo Castellini, Univ. degli Studi di Ancona (Italy)
Gian Marco Revel, Univ. degli Studi di Ancona (Italy)
Lorenzo Scalise, Univ. degli Studi di Ancona (Italy)


Published in SPIE Proceedings Vol. 3593:
Lasers in Dentistry V
John D. B. Featherstone; Peter Rechmann; Daniel Fried, Editor(s)

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