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Proceedings Paper

Temperature changes under Ho:YLF irradiation
Author(s): Denise Maria Zezell; Silvia Cristina M Cecchini; Marcos Pinotti; Carlos de Paula Eduardo
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Paper Abstract

A prototype of Er:Tm:Ho:LiYF4 (Ho:YLF) laser, emitting at 2,065 micrometers , 1,25 J 5 Hz, with pulsewidth of 250 microsecond(s) was developed for biomedical applications. In order to verify the possibility of using this laser for cavities preparation in vivo, temperature rise in the pulp chamber must be known. Temperature changes were measured during Ho:YLF irradiation with 500 mJ/pulse, 30 pulses/position with energy density of 2079 J/cm2/pulse. Two groups of teeth were used: group I with pulp chamber empty and group II with pulp chamber filled with phase change material. In both cases, there were no temperature rise above 3,8 degree(s)C in the pulp chamber.

Paper Details

Date Published: 23 April 1996
PDF: 6 pages
Proc. SPIE 2672, Lasers in Dentistry II, (23 April 1996); doi: 10.1117/12.238782
Show Author Affiliations
Denise Maria Zezell, Instituto de Pesquisas Energeticas e Nucleares (Brazil)
Silvia Cristina M Cecchini, Instituto de Pesquisas Energeticas e Nucleares and Univ. de Sao Paulo (Brazil)
Marcos Pinotti, Univ. Estadual de Campinas (Brazil)
Carlos de Paula Eduardo, Univ. de Sao Paulo (Brazil)

Published in SPIE Proceedings Vol. 2672:
Lasers in Dentistry II
Harvey A. Wigdor D.D.S.; John D. B. Featherstone; Joel M. White D.D.S.; Joseph Neev, Editor(s)

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