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31 December 1993 Thermal effect of Er:YAG laser radiation on dental hard tissues
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Proceedings Volume 2080, Dental Applications of Lasers; (1993)
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary
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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Harvey A. Wigdor D.D.S., Joseph T. Walsh Jr., and Steven R. Visuri "Thermal effect of Er:YAG laser radiation on dental hard tissues", Proc. SPIE 2080, Dental Applications of Lasers, (31 December 1993);


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