Measurement and modeling of temperature distribution for Er:YAG laser root canal sterilization

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

doi:10.1117/12.339158

4 February 1999 Measurement and modeling of temperature distribution for Er:YAG laser root canal sterilization

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

Proceedings Volume 3564, Medical Applications of Lasers in Dermatology, Cardiology, Ophthalmology, and Dentistry II; (1999) https://doi.org/10.1117/12.339158
Event: BiOS Europe '98, 1998, Stockholm, Sweden

Abstract

Based on the bactericidal effect of subablative irradiation the Er:YAG laser can be used for root canal sterilization in endodontics. For this, an optical fiber will be inserted into the root canal down to a depth of about 1 mm in front of the apex, and then removed while activating the laser. In order to avoid heat accumulation which could be harmful to the desmodont or periodont, repetition rate and fiber withdrawal velocity must be kept within certain limits. These limits were determined by calculations based on a 1-dim, cylindrical model and related temperature measurements on half cutted teeth. The calculations agree well to the control measurements and are used to derive a complete set of application parameters in dependence on the expected root thickness.

Citation Download Citation

Raimund Hibst, Karl Stock, and Ulrich Keller D.D.S. "Measurement and modeling of temperature distribution for Er:YAG laser root canal sterilization", Proc. SPIE 3564, Medical Applications of Lasers in Dermatology, Cardiology, Ophthalmology, and Dentistry II, (4 February 1999); https://doi.org/10.1117/12.339158

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