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Proceedings Paper

Optical properties and surface structure comparison of tooth whitening using four laser systems and chemical action agents
Author(s): Tatjana Dostalova M.D.; Helena Jelinkova; Pavel Koranda; Michal Nemec; Jan Sulc; Devana Housova; Mitsunobu Miyagi; Milan R. Kokta
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Paper Abstract

The purpose of the study is to evaluate the effect of various laser techniques for bleaching teeth in office vital whitening. Hydrogen peroxide (30% concentration) and carbamide peroxide (10% solution) were used for chemical activation of bleaching process. Extracted non-carcious upper central incisors were exposed to laser radiation. Four different laser systems (Nd:YAG laser SHG, wavelength 0.53 μm, CTE:YAG laser, wavelength 2.7 μm, Nd:YAG laser, wavelength 1.06 μm, and alexandrite laser, wavelength 0.75 μm) were applied to accelerate the speed of the process. The end of chemical exposition was verified by the change of bleaching agent color. The color change was determined by stereomicroscope (Nikon SMZ 2T, Japan), the quality of surface structure was checked by scanning electron microscope Joel (Japan). The speed of bleaching rnaged from 630 s (chemical methods only) to 250-340 s (chemicals + alexandrite laser radiation). The Alexandrite laser application was considered an elective process to decrease the time of bleaching without modifying the surface.

Paper Details

Date Published: 3 July 2003
PDF: 9 pages
Proc. SPIE 4950, Lasers in Dentistry IX, (3 July 2003); doi: 10.1117/12.476470
Show Author Affiliations
Tatjana Dostalova M.D., Charles Univ. (Czech Republic)
Helena Jelinkova, Czech Technical Univ. (Czech Republic)
Pavel Koranda, Czech Technical Univ. (Czech Republic)
Michal Nemec, Czech Technical Univ. (Czech Republic)
Jan Sulc, Czech Technical Univ. (Czech Republic)
Devana Housova, Institute of Dental Research (Czech Republic)
Mitsunobu Miyagi, Tohoku Univ. (Japan)
Milan R. Kokta, Saint-Gobain Crystals and Detectors (United States)

Published in SPIE Proceedings Vol. 4950:
Lasers in Dentistry IX
Peter Rechmann D.D.S.; Daniel Fried; Thomas Hennig, Editor(s)

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