INTRODUCTION Endodontic treatment removes all pathogens, such as Enterococcus faecalis from pulp and root canals. The aim of this study is to assess the usefulness of sodium hypo-chlorite (NaOCl) in removing E. faecalis from the root canal used with three different irrigation methods. MATERIALS AND METHODS This study was conducted on freshly extracted maxillary incisors. After biomechanical p...

INTRODUCTION This in vitro study compared the antibacterial efficacy of 2.5% sodium hypochlorite gel and 2.5% and 5.25% sodium hypochlorite solutions on Enterococcus faecalis (E. faecalis) biofilm. METHODS AND MATERIALS The root canals of 60 extracted human single-rooted teeth were contaminated with E. faecalis and incubated for 6 weeks. The samples were randomly assigned to three experimenta...

The 2014 West African Ebola virus disease outbreak was the largest to date, and conflicting, chlorine-based surface disinfection protocols to interrupt disease transmission were recommended. We identified only one study documenting surface disinfection efficacy against the Ebola virus, showing a >6.6 log reduction after 5-minute exposure to 0.5% sodium hypochlorite (NaOCl) based on small-scale ...

The purpose of this study was to evaluate the extent of bacterial reduction with nickel-titanium rotary instrumentation and 1.25% NaOCl irrigation. Also, the additional antibacterial effect of calcium hydroxide for >1 wk was tested. Forty-two subjects with radiographic and clinical signs of chronic apical periodontitis were recruited. The canals were sampled before treatment, during and after i...

BACKGROUND Evaluation of the additive effect of photodynamic therapy (PDT) on the antibacterial activity of 2.5% sodium hypochlorite (NaOCl) and QMix against 6-week Enterococcus faecalis biofilms contaminated root canals. AIMS To establish the most suitable irrigant for eradication of 6-week E. faecalis biofilms. SETTINGS AND DESIGN In vitro study. MATERIALS AND METHODS A 6-week E. faecal...

AIM To evaluate the cytotoxicity of 15% citric acid, 5% phosphoric acid and 2.5% NaOCl on cultured fibroblasts using MTT colorimetric assay. METHODOLOGY Irrigating solutions of 5% phosphoric acid, 15% citric acid, and 2.5% NaOCl, diluted at 0.1% and 0.5%, were applied to cell cultures of 3T3L1 fibroblasts. The cell viability was determined by means of MTT colorimetric assay after a period of ...

3. Tasdemir T, et al. (2008). Effect of Passive Ultrasonic Irrigation on Apical Extrusion of Irrigating Solution. Eur J Dent. Methods: Measured amount of NaOCl through the apical foramen when NaOCl was left in the canal versus passive ultrasonic activation of the irrigant conclusions: PUI extruded significantly less irrigant than the control group (2.15 ± 2.73 versus 14 ± 13.03 uL, respectively...

3. Tasdemir T, et al. (2008). Effect of Passive Ultrasonic Irrigation on Apical Extrusion of Irrigating Solution. Eur J Dent. Methods: Measured amount of NaOCl through the apical foramen when NaOCl was left in the canal versus passive ultrasonic activation of the irrigant conclusions: PUI extruded significantly less irrigant than the control group (2.15 ± 2.73 versus 14 ± 13.03 uL, respectively...

introduction: the aim of this study was to compare the antimicrobial effects of mtad, sodium hypochlorite (naocl) and their combination on endodontic micro-organisms. materials and methods: zone of inhibition (zi) and minimum inhibitory concentration (mic) were the techniques used. in zi technique blood agar plates were inoculated with organisms, paper discs were soaked with irrigants and maxim...