Additive effect of a diode laser on the antibacterial activity of 2.5% NaOCl, 2% CHX and MTAD against Enterococcus faecalis contaminating root canals: an in vitro study

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概要

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• This in vitro study was performed to evaluate the effect of a diode laser and common disinfectants used in combination on mono-infected dental canals. One hundred and six single-rooted human premolars were prepared and contaminated with Enterococcus faecalis. After two weeks of incubation, samples were divided into two experimental groups (n = 48) and two control groups (n = 5). In the first group, the teeth were rinsed for 5 min with either sterile saline, 2.5% NaOCl, or MTAD, or for 1 min with 2% chlorhexidine gluconate (CHX). In the other group, samples were additionally irradiated with a 810-nm diode laser at 2 W output for 5 × 5 s. Intracanal bacterial sampling was done, and the samples were plated to determine the CFU count. In the first group, 2.5% NaOCl was as effective as 2% CHX and significantly more effective than MTAD (P < 0.008). In the second group, either MTAD, 2% CHX or 2.5% NaOCl in combination with laser treatment had a similar effect. Absence of growth was seen only for MTAD plus laser treatment. Complete elimination of E. faecalis was seen only for the combination of MTAD with diode laser irradiation. Combination therapy with MTAD irrigation and diode laser irradiation, within the parameters used in this study, can be recommended as an effective treatment option for complete elimination of E. faecalis from the root canal system. (J Oral Sci 53, 355-360, 2011)

著者

• Saghiri Mohammad

  Department of Dental Materials, Dental Branch, Islamic Azad University

• Mehrvarzfar Payman

  Department of Endodontics, Dental Branch, Islamic Azad University

• Asatourian Armen

  Private Practice

• Fekrazad Reza

  Dental Research Center for Laser, Dental Faculty, AJA University and Tehran University of Medical Sciences

• Karamifar Kasra

  Department of Endodontics, Dental Branch, Islamic Azad University

• Eslami Gita

  Shahid Beheshti University of Medical Science

• Dadresanfar Bahareh

  Department of Endodontics, Dental Branch, Islamic Azad University

関連論文

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• Additive effect of a diode laser on the antibacterial activity of 2.5% NaOCl, 2% CHX and MTAD against Enterococcus faecalis contaminating root canals: an in vitro study

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