Infrared thermal measurements of laser soft tissue ablation as a function of air/water coolant for Nd:YAG and diode lasers

Diana Gekelman D.D.S.; Andrew Yamamoto; Marvin G. Oto; Joel M. White D.D.S.

doi:10.1117/12.482332

3 July 2003 Infrared thermal measurements of laser soft tissue ablation as a function of air/water coolant for Nd:YAG and diode lasers

Diana Gekelman D.D.S., Andrew Yamamoto, Marvin G. Oto, Joel M. White D.D.S.

Author Affiliations +

Proceedings Volume 4950, Lasers in Dentistry IX; (2003) https://doi.org/10.1117/12.482332
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

The purpose of this investigation was to measure the maximum temperature at the Nd:YAG and Diode lasers fiberoptic tips as a function of air/water coolant, during soft tissue ablation in pig jaws. A pulsed Nd:YAG laser (1064nm) and a Diode laser (800-830 nm) were used varying parameters of power, conditioning or not of the fiber tip, under 4 settings of air/water coolant. The maximum temperature at the fiber tip was measured using an infra-red camera and the interaction of the fiber with the porcine soft tissue was evaluated. A two-factor ANOVA was used for statistical analysis (p≤0.05). Nd:YAG laser interaction with soft tissues produced temperatures levels directly proportional to power increase, but the conditioning of the fiber tip did not influence the temperature rise. On the other hand, conditioning of the fiber tip did influence the temperature rise for Diode laser. The addition of air/water coolant, for both lasers, did not promote temperature rise consistent with cutting and coagulation of porcine soft tissue. Laser parameters affect the fiberoptic surface temperature, and the addition of air/water coolant significantly lowered surface temperature on the fiberoptic tip for all lasers and parameters tested.

Citation Download Citation

Diana Gekelman D.D.S., Andrew Yamamoto, Marvin G. Oto, and Joel M. White D.D.S. "Infrared thermal measurements of laser soft tissue ablation as a function of air/water coolant for Nd:YAG and diode lasers", Proc. SPIE 4950, Lasers in Dentistry IX, (3 July 2003); https://doi.org/10.1117/12.482332

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