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Proceedings Paper

Morphometric analysis of root canal cleaning after rotary instrumentation with or without laser irradiation
Author(s): Melissa A. Marchesan; Danilo M. Z. Geurisoli; Aldo Brugnera; Eduardo L. Barbin; Jesus Djalma Pecora
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Paper Abstract

The present study examined root canal cleaning, using the optic microscope, after rotary instrumentation with ProFile.04 with or without laser application with different output energies. Cleaning and shaping can be accomplished manually, with ultra-sonic and sub-sonic devices, with rotary instruments and recently, increasing development in laser radiation has shown promising results for disinfection and smear layer removal. In this study, 30 palatal maxillary molar roots were examined using an optic microscope after rotary instrumentation with ProFile .04 with or without Er:YAG laser application (KaVo KeyLaser II, Germany) with different output energies (2940 nm, 15 Hz, 300 pulses, 500 milli-sec duration, 42 J, 140 mJ showed on the display- input, 61 mJ at fiberoptic tip-output and 140 mJ showed on the display-input and 51 mJ at fiberoptic tip-output). Statistical analysis showed no statistical differences between the tested treatments (ANOVA, p>0.05). ANOVA also showed a statistically significant difference (p<0.01) between the root canal thirds, indicating that the middle third had less debris than the apical third. We conclude that: 1) none of the tested treatments led to totally cleaned root canals; 2) all treatments removed debris similarly, 3) the middle third had less debris than the apical third; 4) variation in output energy did not increase cleaning.

Paper Details

Date Published: 3 June 2002
PDF: 4 pages
Proc. SPIE 4610, Lasers in Dentistry VIII, (3 June 2002); doi: 10.1117/12.469316
Show Author Affiliations
Melissa A. Marchesan, Univ. de Sao Paulo (Brazil)
Danilo M. Z. Geurisoli, Univ. de Sao Paulo (Brazil)
Aldo Brugnera, Univ. Federal do Rio de Janeiro and Univ. Camilo Castelo Branco (Brazil)
Eduardo L. Barbin, Univ. de Sao Paulo (Brazil)
Jesus Djalma Pecora, Univ. de Sao Paulo (Brazil)

Published in SPIE Proceedings Vol. 4610:
Lasers in Dentistry VIII
Peter Rechmann; Daniel Fried; Thomas Hennig, Editor(s)

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