Temperature changes under Ho:YLF irradiation

Denise Maria Zezell; Silvia Cristina M Cecchini; Marcos Pinotti; Carlos de Paula Eduardo

doi:10.1117/12.238782

23 April 1996 Temperature changes under Ho:YLF irradiation

Denise Maria Zezell, Silvia Cristina M Cecchini, Marcos Pinotti, Carlos de Paula Eduardo

Proceedings Volume 2672, Lasers in Dentistry II; (1996) https://doi.org/10.1117/12.238782
Event: Photonics West '96, 1996, San Jose, CA, United States

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.

Citation Download Citation

Denise Maria Zezell, Silvia Cristina M Cecchini, Marcos Pinotti, and Carlos de Paula Eduardo "Temperature changes under Ho:YLF irradiation", Proc. SPIE 2672, Lasers in Dentistry II, (23 April 1996); https://doi.org/10.1117/12.238782

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