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Dental Research Journal، جلد ۹، شماره ۵، صفحات ۰-۰
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عنوان انگلیسی Comparison of the bactericidal effi cacy of photodynamic therapy, 2.5% sodium hypochlorite, and 2% chlorhexidine against Enterococcous faecalis in root canals; an in vitro study
چکیده انگلیسی مقاله Background : Enterococcus faecalis has been widely used as a valuable microbiological pathogen for in vitro studies due to its ability to successfully colonize the root canal in a biofi lm-like style, invade dentinal tubules, and resist endodontic treatment procedures.The aim of this study was to compare the bactericidal effi cacy of photodynamic therapy (PDT), 2% chlorhexidine, 2.5% NaOCl, and combination of PDT and 2.5% NaOCl against E. faecalis . Materials and Methods: Sixty single-rooted teeth had their canals contaminated with E. faecalis in brain heart infusion broth and were incubated for 48 hours.The canals were then subjected to 2% chlorhexidine, 2.5% NaOCl, PDT (red light emitting diode 625 nm+ Toludine Blue) and PDT + 2.5% NaOCl. Controls consisted of no treatment (positive control) and without inoculation of bacterium (negative control). Following treatment, the canal contents were sampled with sterile paper points. The samples were dispersed in transport medium, serially diluted, and cultured on blood agar to determine the number of colony forming units (CFU). Data were analyzed by Mann-Whitney U test at 5% signifi cance level. The signifi cance level for all analyses was set at P <.05. Results: Combination of PDT and 2.5% NaOCl achieved maximum reduction in recovered viable bacteria, no viable bacteria was observed after treatment of PDT + 2.5% NaOCl. Conclusion: Combination of PDT and 2.5% NaOCl simultaneously is effective in the elimination of E. faecalis from dentinal tubules under the conditions of this study. Key Words: Enterococcus faecalis, sodium hypochlorite, photosensitization, root canals, toluidine blue
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نویسندگان مقاله شهرام وزیری | shahram vaziri


علی کنگرلو | ali kangarlou


راضیه شهبازی | razieh shahbazi


امین نظری نسب | amin nazari nasab


ماندانا ناصری | mandana naseri


نشانی اینترنتی http://drj.mui.ac.ir/index.php/drj/article/view/1218
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زبان مقاله منتشر شده en
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