Morphometric analysis of root canal cleaning after rotary instrumentation with or without laser irradiation

Melissa A. Marchesan; Danilo M. Z. Geurisoli; Aldo Brugnera Jr.; Eduardo L. Barbin; Jesus Djalma Pecora D.D.S.

doi:10.1117/12.469316

3 June 2002 Morphometric analysis of root canal cleaning after rotary instrumentation with or without laser irradiation

Melissa A. Marchesan, Danilo M. Z. Geurisoli, Aldo Brugnera Jr., Eduardo L. Barbin, Jesus Djalma Pecora D.D.S.

Proceedings Volume 4610, Lasers in Dentistry VIII; (2002) https://doi.org/10.1117/12.469316
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States

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.

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Melissa A. Marchesan, Danilo M. Z. Geurisoli, Aldo Brugnera Jr., Eduardo L. Barbin, and Jesus Djalma Pecora D.D.S. "Morphometric analysis of root canal cleaning after rotary instrumentation with or without laser irradiation", Proc. SPIE 4610, Lasers in Dentistry VIII, (3 June 2002); https://doi.org/10.1117/12.469316

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KEYWORDS

Fiber optics

Statistical analysis

Er:YAG lasers

Microscopes

Teeth

Laser development

Laser irradiation

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