Comparative evaluation of root surface after manual instrumentation with and without Er:YAG laser as an auxiliary therapy: in-vitro study

Rosane F. Z. Lizarelli D.D.S.; Zulene Alves Ferreira; Tatiana Mello Torquato; Jose Eduardo Cezar Sampaio; Vanderlei Salvador Bagnato

doi:10.1117/12.380851

24 March 2000 Comparative evaluation of root surface after manual instrumentation with and without Er:YAG laser as an auxiliary therapy: in-vitro study

Rosane F. Z. Lizarelli D.D.S., Zulene Alves Ferreira, Tatiana Mello Torquato, Jose Eduardo Cezar Sampaio, Vanderlei Salvador Bagnato

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Proceedings Volume 3910, Lasers in Dentistry VI; (2000) https://doi.org/10.1117/12.380851
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

One of the most important difficulty in the periodontal disease treatment resides in the impossibility of decontamination of roots just affected by the periodontal disease through mechanical tools. Manual dental scaling results in the amorphous material without continuity solution due to the dental cut, denominated smear layer. The main purpose of the present study was to evaluate the structure of the radicular surface using two methods for periodontal treatments: manual and mechanical associated to the irrigation with water and with EDTA (ethylene diamine tetracycline acid), followed by the application of the Er:YAG laser or the same without laser. Thirty teeth were selected with periodontal involvement. The radicular surface was scraped with ultrasound and planed vigorously, with manual instrumentation. The teeth were divided ramdomically in several groups: GI -- control, just manual instrumentation and water irrigation; GII -- manual instrumentation, EDTA irrigation; GIII -- manual instrumentation, EDTA irrigation, Er:YAG laser irradiation; GIV -- manual instrumentation, laser irradiation; and, GV -- manual instrumentation, laser irradiation and EDTA. Kruskall Wallis statistical test was applied and shows that there was not significance difference at the level of 5% among the five groups, however, when the groups were compared in pairs, GII X GIV and GII X GV shows difference in 5%, and GI X GII, difference at 1% level. The results show equivalence around the used methodology.

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Rosane F. Z. Lizarelli D.D.S., Zulene Alves Ferreira, Tatiana Mello Torquato, Jose Eduardo Cezar Sampaio, and Vanderlei Salvador Bagnato "Comparative evaluation of root surface after manual instrumentation with and without Er:YAG laser as an auxiliary therapy: in-vitro study", Proc. SPIE 3910, Lasers in Dentistry VI, (24 March 2000); https://doi.org/10.1117/12.380851

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KEYWORDS

Er:YAG lasers

Scanning electron microscopy

Laser dentistry

Tissues

Natural surfaces

Teeth

In vitro testing

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