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Proceedings Paper

Experimental investigations of the use of an erbium:YAG laser on temporomandibular joint (TMJ) structures: first experimental results
Author(s): Michael Nuebler-Moritz; Herbert Niederdellmann; Peter Hering; Christian Deuerling; Ralf Dammer; M. Behr
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Paper Abstract

The following paper introduces the results of an interdisciplinary research project. With the aid of photomacroscopic examination, light and scanning electron microscope investigations, changes to temporomandibular joint structures were detected in vitro after irradiation with an Erbium:YAG laser system. The solid-state Erbium:YAG laser, operating at a wavelength of 2.94 micrometers was used in the normal- spiking mode. The free-running laser beam was focussed onto freshly excised porcine tissue samples using a 108-mm sapphire lens. In this study the output was generally pulsed at a repetition rate of 4 Hz, with a pulse duration varying from 120 microsecond(s) to 500 microsecond(s) . Between 50 mJ and 500 mJ per pulse were applied to create pinpoint lesions. The optimum average energy density and pulse duration of the Erbium:YAG laser radiation for the purpose of TMJ-surgery (as far as it concerns meniscus and articulating facets) - which means efficient etch rate and minimal adjacent injury - seems to be about 24-42 J/cm2 and 120 microsecond(s) -240 microsecond(s) , respectively.

Paper Details

Date Published: 17 April 1995
PDF: 7 pages
Proc. SPIE 1984, Advanced Laser Dentistry, (17 April 1995); doi: 10.1117/12.207019
Show Author Affiliations
Michael Nuebler-Moritz, Univ. of Regensburg (Germany)
Herbert Niederdellmann, Univ. Regensburg (Germany)
Peter Hering, Univ. Duesseldorf (Germany)
Christian Deuerling, Univ. Regensburg (Germany)
Ralf Dammer, Univ. Regensburg (Germany)
M. Behr, Univ. Regensburg (Germany)


Published in SPIE Proceedings Vol. 1984:
Advanced Laser Dentistry
Gregory B. Altshuler; Richard J. Blankenau; Harvey A. Wigdor, Editor(s)

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