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Egyptian Dental Journal
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Volume Volume 68 (2022)
Issue Issue 3
July (Orthodontics, Pediatric & Preventive Dentistry)
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Issue 3 - ِJuly (Oral Surgery)
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April (Orthodontics, Pediatric & Preventive Dentistry)
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Oral Surgery
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April (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
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Fixed Prosthodontics, Removable Prosthodontics and Dental Materials
Issue Issue 2
Conservative Dentistry and Endodontics
Issue Issue 1
January (Orthodontics, Pediatric & Preventive Dentistry)
Issue Issue 1
January (Oral Surgery)
Issue Issue 1
January (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
Issue Issue 1
January (Fixed Prosthodontics, Removable Prosthodontics and Dental Materials)
Issue Issue 1
January (Conservative Dentistry and Endodontics)
Volume Volume 67 (2021)
Volume Volume 66 (2020)
Volume Volume 65 (2019)
Volume Volume 64 (2018)
Volume Volume 63 (2017)
Volume Volume 62 (2016)
Dawood, A. (2022). Evaluation of Antimicrobial Efficacy of Gaseous ozone and Ozonized water against Enterococcus Faecalis Biofilm. Egyptian Dental Journal, 68(2), 1781-1788. doi: 10.21608/edj.2022.107875.1883
Ashraf Dawood. "Evaluation of Antimicrobial Efficacy of Gaseous ozone and Ozonized water against Enterococcus Faecalis Biofilm". Egyptian Dental Journal, 68, 2, 2022, 1781-1788. doi: 10.21608/edj.2022.107875.1883
Dawood, A. (2022). 'Evaluation of Antimicrobial Efficacy of Gaseous ozone and Ozonized water against Enterococcus Faecalis Biofilm', Egyptian Dental Journal, 68(2), pp. 1781-1788. doi: 10.21608/edj.2022.107875.1883
Dawood, A. Evaluation of Antimicrobial Efficacy of Gaseous ozone and Ozonized water against Enterococcus Faecalis Biofilm. Egyptian Dental Journal, 2022; 68(2): 1781-1788. doi: 10.21608/edj.2022.107875.1883

Evaluation of Antimicrobial Efficacy of Gaseous ozone and Ozonized water against Enterococcus Faecalis Biofilm

Article 2, Volume 68, Issue 2 - Serial Number 5, April 2022, Page 1781-1788  XML PDF (977.64 K)
Document Type: Original Article
DOI: 10.21608/edj.2022.107875.1883
Author
Ashraf Dawood email orcid
Lecturer, Endodontics Department, Faculty of Dentistry, Karf Elsheikh University, Kafr Elsheikh, Egypt.
Abstract
40 single-canalled permanent teeth were instrumented then inoculated with Enterococcus faecalis and stored in incubator for one week. After biofilm model conformation by SEM, the samples were irrigated with 5% sodium hypochlorite, gaseous ozone (44 μg ml-1) and gaseous ozone with ozonized water (5 μg ml-1). Root canals were sampled before (S1) and immediately after irrigation (S2). The samples were taken by three dry sterile paper points placed to the full WL kept in the canal for 1 min then transferred to tubes containing .05 mL BHI broth solution. After obtaining 1:10 serial dilution from each sample, aliquots were plated out on KF streptococcus agar plates. Then the plates were incubated anaerobically at 37 C for 2 days .The number of bacterial colonies of E. faecalis were counted and expressed as CFUs using a digital colony counter. All groups showed a significant reduction of CFUs (P < 0.001) while having greater antimicrobial reduction was observed on samples of NaOCl irrigation. There was no significant difference between gaseous ozone and gaseous ozone + ozonized water groups. It can be concluded that the gaseous ozone reduced E. faecalis number significantly but was not able to eradicate it completely. While, ozonized water failed to increase the antimicrobial efficacy of gaseous ozone.
Keywords
Ozone; Enterococcus Faecalis; Biofilm
Main Subjects
Endodontics
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