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Proceedings Paper

Comparative evaluation of root surface after manual instrumentation with and without Er:YAG laser as an auxiliary therapy: in-vitro study
Author(s): Rosane F. Z. Lizarelli; Zulene Alves Ferreira; Tatiana Mello Torquato; Jose Eduardo Cezar Sampaio; Vanderlei Salvador Bagnato
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Paper 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.

Paper Details

Date Published: 24 March 2000
PDF: 9 pages
Proc. SPIE 3910, Lasers in Dentistry VI, (24 March 2000); doi: 10.1117/12.380851
Show Author Affiliations
Rosane F. Z. Lizarelli, Univ. de Sao Paulo (Brazil)
Zulene Alves Ferreira, Univ. de Ribeirao Preto School of Dentistry (Brazil)
Tatiana Mello Torquato, Univ. Estadual de Sao Paulo School of Dentistry (Brazil)
Jose Eduardo Cezar Sampaio, Univ. de Ribeirao Preto School of Dentistry (Brazil)
Vanderlei Salvador Bagnato, Univ. de Sao Paulo (Brazil)


Published in SPIE Proceedings Vol. 3910:
Lasers in Dentistry VI
John D. B. Featherstone; Peter Rechmann; Daniel Fried, Editor(s)

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