Tooth bleaching using three laser systems, halogen-light unit, and chemical action agents

Tatjana Dostalova M.D.; Helena Jelinkova; Devana Housova; Jan Sulc D.D.S.; Michal Nemec; Petr Koranda; Mitsunobu Miyagi; Yi-Wei Shi; Yuji Matsuura

doi:10.1117/12.584425

10 September 2004 Tooth bleaching using three laser systems, halogen-light unit, and chemical action agents

Tatjana Dostalova M.D., Helena Jelinkova, Devana Housova, Jan Sulc D.D.S., Michal Nemec, Petr Koranda, Mitsunobu Miyagi, Yi-Wei Shi, Yuji Matsuura

Author Affiliations +

Proceedings Volume 5610, Laser Florence 2003: A Window on the Laser Medicine World; (2004) https://doi.org/10.1117/12.584425
Event: Laser Florence 2003: A Window on the Laser Medicine World, 2003, Florence, Italy

Abstract

μThe study describes the preclinical experience with laser-activated bleaching agent for discolored teeth. Extracted human upper central incisors were selected, and in the bleaching experiment 35% hydrogen peroxide was used. Three various laser systems and halogen-light unit for activation of the bleaching agent were applied. They were Alexandrite laser (wavelength 750 nm and 375 nm - SHG), Nd:YAG laser (wavelength 1.064 m), and Er:YAG laser (wavelength 2.94 μm). The halogen-light unit was used in a standard regime. The enamel surface was analyzed in the scanning electron microscope. The method of chemical oxidation results in a 2-3 shade change in one treatment. The halogen-light units produced the same effect with shorter time of bleaching process (from 630 s to 300 s). The Alexandrite laser (750 nm) and bleaching agent helped to reach the desired color shade after a shorter time (400 s). Alexandrite laser (375 nm) and Nd:YAG laser had no effect on the longevity of the process of bleaching. Overheating of the chemical bleaching agent was visible after Er:YAG laser activation (195 s). Slight surface modification after bleaching process was detected in SEM.

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Tatjana Dostalova M.D., Helena Jelinkova, Devana Housova, Jan Sulc D.D.S., Michal Nemec, Petr Koranda, Mitsunobu Miyagi, Yi-Wei Shi, and Yuji Matsuura "Tooth bleaching using three laser systems, halogen-light unit, and chemical action agents", Proc. SPIE 5610, Laser Florence 2003: A Window on the Laser Medicine World, (10 September 2004); https://doi.org/10.1117/12.584425

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