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Proceedings Paper

Er:YAG laser ablation: evaluation after a two-year clinical treatment
Author(s): Tatjana Dostalova M.D.; Helena Jelinkova; Hana Kucerova M.D.; Otakar Krejsa M.D.; Karel Hamal; Jiri Kubelka; Stanislav Prochazka
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Paper Abstract

The aim of the clinical study is to evaluate Er:YAG laser ablation after two year-long clinical treatment. One hundred fifty cavities were volunteered for checking. Three restorative materials were used following manufacturer's directions. For the experiment, an Er:YAG laser drilling machine was applied. The laser delivered energy from 100 to 450 mJ, repetition rate from 1 to 4 Hz. The length of the generated pulses was 200 microseconds. During our experiments cooling of the teeth was achieved by fine water mist. The number of pulses was from 16 to 489. Caries of enamel and dentin were treated. Old insufficient fillings were also removed (not amalgam or metal alloys). The experiments followed the guidelines of the Declaration of Helsinki (1964), Tokyo (1975), Venice (1983) and Hong-Kong (1989). Clinical evaluation of fillings after 6, 12, 18 and 24 months based on ADA recommendation was used. Eight criteria were applied for the restoration control. Composite resins and glassionomers could be used as filling materials.

Paper Details

Date Published: 22 April 1998
PDF: 10 pages
Proc. SPIE 3248, Lasers in Dentistry IV, (22 April 1998); doi: 10.1117/12.306027
Show Author Affiliations
Tatjana Dostalova M.D., Institute of Dental Research (Czech Republic)
Helena Jelinkova, Czech Technical Univ. (Czech Republic)
Hana Kucerova M.D., Institute of Dental Research (Czech Republic)
Otakar Krejsa M.D., Institute of Dental Research (Czech Republic)
Karel Hamal, Czech Technical Univ. (Czech Republic)
Jiri Kubelka, Preciosa-Crytur (Czech Republic)
Stanislav Prochazka, Preciosa-Crytur (Czech Republic)

Published in SPIE Proceedings Vol. 3248:
Lasers in Dentistry IV
John D. B. Featherstone; Peter Rechmann D.D.S.; Daniel Fried, Editor(s)

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