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Proceedings Paper

Thermal effect of Er:YAG laser radiation on dental hard tissues
Author(s): Harvey A. Wigdor; Joseph T. Walsh; Steven R. Visuri
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Paper Abstract

The object of this paper is to evaluate the thermal effect of the Er:YAG laser on human teeth and discuss the preliminary studies of the effects of water on the ablation efficiency of the Er:YAG laser. Human extracted teeth were sectioned into varying thicknesses in a horizontal plane and placed in a holder and aligned in a position where the laser was in focus on the surface of the tooth. First the laser was set at a known energy and the number of pulses needed to ablate through the known thickness of tooth were counted and a proportion of energy vs. ablation depth (etch rate) was determined. After etch rate was determined a thermocouple was placed on the back surface of the tooth section in line with the laser. The laser was then used to cut into the tooth just above the thermocouple and the temperature determined with and without water.

Paper Details

Date Published: 31 December 1993
PDF: 7 pages
Proc. SPIE 2080, Dental Applications of Lasers, (31 December 1993); doi: 10.1117/12.166185
Show Author Affiliations
Harvey A. Wigdor, Ravenswood Hospital Medical Ctr. (United States)
Joseph T. Walsh, Northwestern Univ. (United States)
Steven R. Visuri, Northwestern Univ. (United States)


Published in SPIE Proceedings Vol. 2080:
Dental Applications of Lasers
Gregory B. Altshuler; Raimund Hibst, Editor(s)

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