Er:YAG laser for endodontics: efficiency and safety

Raimund Hibst; Karl Stock; Robert Gall; Ulrich Keller D.D.S.

doi:10.1117/12.297860

22 December 1997 Er:YAG laser for endodontics: efficiency and safety

Raimund Hibst, Karl Stock, Robert Gall, Ulrich Keller D.D.S.

Proceedings Volume 3192, Medical Applications of Lasers in Dermatology, Ophthalmology, Dentistry, and Endoscopy; (1997) https://doi.org/10.1117/12.297860
Event: BiOS Europe '97, 1997, San Remo, Italy

Abstract

Recently it has been shown that bacterias can be sterilized by Er:YAG laser irradiation. By optical fiber transmission the bactericidal effect can also be used in endodontics. In order to explore potential laser parameters, we further investigated sterilization of caries and measured temperatures in models simulating endodontic treatment. It was found out that the bactericidal effect is cumulative, with single pulses being active. This offers to choose all laser parameters except pulse energy (radiant exposure) from technical, practical or safety considerations. For clinical studies the following parameter set is proposed for efficient and safe application (teeth with a root wall thickness > 1 mm, and prepared up to ISO 50): pulse energy: 50 mJ, repetition rate: 15 Hz, fiber withdrawal velocity: 2 mm/s. With these settings 4 passes must be performed to accumulate the total dose for sterilization.

Citation Download Citation

Raimund Hibst, Karl Stock, Robert Gall, and Ulrich Keller D.D.S. "Er:YAG laser for endodontics: efficiency and safety", Proc. SPIE 3192, Medical Applications of Lasers in Dermatology, Ophthalmology, Dentistry, and Endoscopy, (22 December 1997); https://doi.org/10.1117/12.297860

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