Thermal and noise level characteristics of hard dental tissue ablation with 350-fs pulse laser

Joseph Neev; Daniel S. Huynh; William A. Carrasco; Petra B. B. Wilder-Smith; Luiz Barroca Da Silva; Michael D. Feit; Michael D. Perry; Alexander M. Rubenchik; Brent C. Stuart

doi:10.1117/12.238776

23 April 1996 Thermal and noise level characteristics of hard dental tissue ablation with 350-fs pulse laser

Joseph Neev, Daniel S. Huynh, William A. Carrasco, Petra B. B. Wilder-Smith, Luiz Barroca Da Silva, Michael D. Feit, Michael D. Perry, Alexander M. Rubenchik, Brent C. Stuart

Author Affiliations +

Proceedings Volume 2672, Lasers in Dentistry II; (1996) https://doi.org/10.1117/12.238776
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

In spite of intensive research, lasers have not replaced conventional tools in many hard tissue applications. Low removal rates, loud operation noise, and mechanical and thermal damage are among the main obstacles to successful application of lasers. Ultrashort pulse lasers offer several advantages in their high per-pulse-efficiency, negligible thermal and mechanical damage and low noise operation. Practical applications of these devices, however, depends critically on sufficiently high volume removal which should match or even exceed the high speed drill. In our study, acoustical output of the USPL is compared to the low and high speed dental drill, Er:YAG, and Ho:YSGG lasers. Noise levels of the USPL are shown to be negligible in comparison with all other tested system. In addition, thermal characteristics of hard dental tissue ablation by ultrashort pulse laser of low and high pulse repetition rates are presented. Encouraging results showing temperatures increases smaller than 10 degree(s)C even at the highest pulse repetition rates (1 KHz) are presented. A simple model for heat diffusion is discussed.

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Joseph Neev, Daniel S. Huynh, William A. Carrasco, Petra B. B. Wilder-Smith, Luiz Barroca Da Silva, Michael D. Feit, Michael D. Perry, Alexander M. Rubenchik, and Brent C. Stuart "Thermal and noise level characteristics of hard dental tissue ablation with 350-fs pulse laser", Proc. SPIE 2672, Lasers in Dentistry II, (23 April 1996); https://doi.org/10.1117/12.238776

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