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Proceedings Paper

Scanning electron microscopy and ablation rates of hard dental tissue using 350-fs and 1-ns laser pulses
Author(s): Joseph Neev; Daniel S. Huynh; Claudiu C. Dan; Joel M. White; Luiz Barroca Da Silva; Michael D. Feit; Dennis L. Matthews; Michael D. Perry; Alexander M. Rubenchik; Brent C. Stuart
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Paper Abstract

Lasers are currently limited in their ability to remove hard tissue. Furthermore, many laser systems, such as the long pulse infrared lasers used to ablate bone or hard dental tissue, also generate unacceptable heat levels and cause collateral tissue damage. Ultrashort pulse lasers, however, are highly efficient, quiet, and relatively free of charge. With recent developments now allowing operation at high pulse repetition rates, ultrashort pulse systems can yield significant material volume removal which can potentially match or even exceed conventional technology while still maintaining the minimal collateral damage characteristics. In this paper, the interaction characteristics of two pulse regimes with enamel and dentin: 350 fs pulse ablation of hard dental tissues is compared to the interaction with one nanosecond pulses. Ablation rates were characterized and surface morphology, and structure were evaluated using a scanning electron microscope.

Paper Details

Date Published: 23 April 1996
PDF: 12 pages
Proc. SPIE 2672, Lasers in Dentistry II, (23 April 1996); doi: 10.1117/12.238774
Show Author Affiliations
Joseph Neev, Beckman Laser Institute and Medical Clinic (United States)
Daniel S. Huynh, Beckman Laser Institute and Medical Clinic (United States)
Claudiu C. Dan, Beckman Laser Institute and Medical Clinic (United States)
Joel M. White, Univ. of California/San Francisco (United States)
Luiz Barroca Da Silva, Lawrence Livermore National Lab. (United States)
Michael D. Feit, Lawrence Livermore National Lab. (United States)
Dennis L. Matthews, Lawrence Livermore National Lab. (United States)
Michael D. Perry, Lawrence Livermore National Lab. (United States)
Alexander M. Rubenchik, Lawrence Livermore National Lab. (United States)
Brent C. Stuart, Lawrence Livermore National Lab. (United States)


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

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