Er:YAG laser radiation etching of enamel

Tatjana Dostalova M.D.; Helena Jelinkova; Otakar Krejsa M.D.; Karel Hamal; Jiri Kubelka; Stanislav Prochazka

doi:10.1117/12.260664

3 December 1996 Er:YAG laser radiation etching of enamel

Tatjana Dostalova M.D., Helena Jelinkova, Otakar Krejsa M.D., Karel Hamal, Jiri Kubelka, Stanislav Prochazka

Proceedings Volume 2922, Laser Applications in Medicine and Dentistry; (1996) https://doi.org/10.1117/12.260664
Event: BiOS Europe '96, 1996, Vienna, Austria

Abstract

This study compares the effects of acid treatment and Er:YAG laser radiation on the enamel. The permanent human molars were used. Oval cavities in the buccal surface were prepared and the edges of cavities were irradiated by Er:YAG radiation. The energy of laser was 105 mJ and repetition rate 1 Hz. The radiation was focused by CaF₂ lens and the sample was placed in the focus. Ten samples were etched by 35 percent phosphoric acid during 60 s. Than cavities were filled with composite resin following manufacturers directions. By laser etching the structure enamel in section was rougher. The optimal connection between the enamel and composite resin was achieved in 75 percent by acid etching and in 79.2 percent by Er:YAG laser etching. Er:YAG laser etching could be alternative method for etching of enamel.

Citation Download Citation

Tatjana Dostalova M.D., Helena Jelinkova, Otakar Krejsa M.D., Karel Hamal, Jiri Kubelka, and Stanislav Prochazka "Er:YAG laser radiation etching of enamel", Proc. SPIE 2922, Laser Applications in Medicine and Dentistry, (3 December 1996); https://doi.org/10.1117/12.260664

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