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The effect of ultrasonically activated irrigation and laser based root canal irrigation methods on debris removal

Abstract

Purpose

To test the efficacy of debris removal of 5 in vitro irrigation protocols: conventional irrigation, irrigation activated by ultrasound, Er:YAG laser with photon-induced photoacoustic streaming (PIPS) tip, and 2 diode laser techniques.

Methods

The root canals of 75 extracted human canine teeth were enlarged and bisected longitudinally. Standardized grooves were prepared 2-6 mm from the root apex and filled with 0.5 mm of dentine debris. The teeth were reassembled and irrigated using 1 of the following techniques (n = 15/technique): (1) conventional irrigation, (2) diode laser irrigation - tip placed 2 mm from working length, (3) diode laser irrigation - tip placed at root canal orifice, (4) Er:YAG laser - PIPS, and (5) ultrasonically activated irrigation. The root segments were disassembled, and the amount of remaining debris was evaluated by 3 examiners under a stereomicroscope at ×20 magnification using a 4-grade scoring system. The data were statistically analyzed using Kruskal-Wallis and Dunn’s multiple comparison tests, with a 95% confidence level (p = 0.05). Cohen’s kappa test was used to evaluate inter-observer and intra-observer agreement.

Results

Ultrasonically activated irrigation removed significantly more dentinal debris than conventional irrigation (p = 0.016), but there were no significant differences between the other groups.

Conclusions

Ultrasonically activated irrigation was more effective than conventional irrigation in the removal of apically placed dentine debris.

Post author correction

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/ijao.5000646

Authors

Aysenur Kamaci, Berdan Aydin, Necdet Erdilek

Article History

Disclosures

Financial support: This research study was funded by a grant from the Ege University Scientific Research Committee - project number 2013-dis-012.
Conflict of interest: None of the authors has financial interest related to this study to disclose.

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Authors

Affiliations

  • Department of Endodontics, Faculty of Dentistry, Ege University, Izmir - Turkey
  • Dentist Private Practice, Izmir - Turkey

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