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Proceedings Paper

Ultrastructural changes of enamel and dentin following Er:YAG laser radiation on teeth
Author(s): Ulrich Keller D.D.S.; Raimund Hibst
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Paper Abstract

Polarisation microscopic and SEM investigations of the ejected material following Er:YAG laser radiation on teeth were performed. Depending on the radiant energy different textural structures of material are found. At radiant energies exceeding 50 mJ a melt with crystalline microparticles on the surface can be seen. Supporting our previous hypothesis of the ablation process, now it can be stated, that first the evaporation process will start and with a little time delay some microexplosions with ejecting crystalline material will take place. This is in conformity with X-ray diffractometric investigations. For CO2 laser ablation only a melting deposit was found.

Paper Details

Date Published: 1 June 1990
PDF: 8 pages
Proc. SPIE 1200, Laser Surgery: Advanced Characterization, Therapeutics, and Systems II, (1 June 1990); doi: 10.1117/12.17486
Show Author Affiliations
Ulrich Keller D.D.S., Univ. of Ulm (Germany)
Raimund Hibst, Univ. of Ulm (Germany)


Published in SPIE Proceedings Vol. 1200:
Laser Surgery: Advanced Characterization, Therapeutics, and Systems II
Stephen N. Joffe M.D.; Kazuhiko Atsumi M.D., Editor(s)

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