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Proceedings Paper

Scanning ablation of dental hard tissue with Erbium laser radiation
Author(s): M. Zeck; Hartmut Benthin; Thomas P. Ertl; G. K. Siebert; Gerhard J. Mueller
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Paper Abstract

Pulsed laser radiation in the range of very high water absorption near 3 micrometer is well known to be effective for the ablation of dental hard tissues. However ablation quality is limited by thermal side effects if using higher pulse repetition rates. This paper presents qualitative and quantitative results of dentin and enamel ablation with a scanned laser beam (emission wavelength 2.94 micrometer) and simultaneously, use of spray cooling. It is known that ablation of enamel is more problematic because of the low content of water. It was observed that the creation of unwanted 'recrystallizations' depended on a complex dependence of spot size, energy density, quantity of spray cooling and pulse duration. 'Recrystallizations' can be prevented by using optimized parameters.

Paper Details

Date Published: 19 January 1996
PDF: 9 pages
Proc. SPIE 2623, Medical Applications of Lasers III, (19 January 1996); doi: 10.1117/12.230320
Show Author Affiliations
M. Zeck, Laser- und Medizin Technologie gGmbH and Freie Univ. Berlin (Germany)
Hartmut Benthin, Laser- und Medizin-Technologie gGmbH (Germany)
Thomas P. Ertl, Freie Univ. Berlin (Germany)
G. K. Siebert, Freie Univ. Berlin (Germany)
Gerhard J. Mueller, Laser- und Medizin-Technologie gGmbH (Germany)

Published in SPIE Proceedings Vol. 2623:
Medical Applications of Lasers III
Stephen G. Bown; Herbert J. Geschwind M.D.; Raimund Hibst; Frederic Laffitte; Giulio Maira; Roberto Pini; Hans-Dieter Reidenbach; Hans H. Scherer M.D.; Pasquale Spinelli, Editor(s)

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