Effect of 5% Chlorine Dioxide Irrigant on Micro Push Out Bond Strength of Resin Sealer to Radicular Dentin: An In Vitro Study
Journal Title: Journal of Clinical and Diagnostic Research - Year 2017, Vol 11, Issue 5
Abstract
Introduction: Chlorine dioxide (ClO2 ) has been recently investigated as a possible root canal irrigant due to its broad spectrum of antimicrobial action, tissue dissolution and smear layer removal properties. Literature is scarce on the effect of chlorine dioxide irrigation on the resin sealer dentin bond strength. Aim: To compare 5% chlorine dioxide (ClO2 ) with or without Ethylene Diamine Tetra Acetic acid (EDTA) with 3% Sodium hypochlorite (NaOCl) and EDTA combination as endodontic irrigants on the adhesion of AH Plus sealer to radicular dentin using micro- Push out Bond Strength (µPBS) test. Materials and Methods: Forty freshly extracted central incisors were decoronated and randomly divided into four groups based on the different irrigation regimes followed during irrigation: Group I - 3% NaOCl + 17% EDTA, Group II - 5% ClO2 + 17% EDTA, Group III - 5% ClO2 and Group IV – Saline, and canal enlarged till Protaper F3. All the samples were obturated with F3 gutta-percha cones using AH Plus sealer and sectioned perpendicular to long axis to obtain 1mm thick slices from the middle and coronal portions for µPBS measurement in universal testing machine followed by assessment of failure pattern under stereomicroscope. Data was analysed using One-way analysis of variance (ANOVA), Bonferroni and t-test. Results: Bond strength values were in the following order: Group I>Group II>Group III>Group IV, with no statistically significant difference amongst experimental groups on intergroup comparison, except with saline. The µPBS values were more in coronal third than middle third in all specimens, with no statistical significant difference. Mode of failure showed mixed patterns in all experimental groups except saline. Conclusion: In the present study, the bond strength values of ClO2 were comparable with conventional NaOCl and EDTA combination and hence, ClO2 can be considered as an effective alternative endodontic irrigant.
Authors and Affiliations
Rejitha R Kamalasanan, Swapna V Devarasanahalli, Ranjini M Aswathanarayana, K Rashmi, Yashwanth Gowda, Roopa R Nadig
Keywords
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- EP ID EP344504
- DOI 10.7860/JCDR/2017/25519.9857
- Views 90
- Downloads 0
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