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The effect of Carvacrol on Enterococcus faecalis as a final irrigant

Ali Nosrat, Behnam Bolhari, Mohammad Reza Sharifian, Marziyeh Aligholi, Mahsa Sadat Mortazavi
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Abstract

INTRODUCTION: Sodium hypochlorite (NaOCl) is an effective antimicrobial irrigant, however its toxic effects and deterrent odor are not ideal. Carvacrol is an edible plant extract with anti-inflammatory and anti-bacterial properties that is effective against Enterococcus (E) faecalis. The aim of this study was to evaluate Carvacrol's antibacterial efficacy against E. faecalis bacteria as a final irrigant. MATERIALS AND METHODS: Forty extracted single-rooted human teeth were utilized. After mechanical preparations, samples were randomly divided into three experimental (A, B and C) and two control groups. E. faecalis was cultured in both experimental and positive control groups. After bacterial counting in all canals, 5.25% NaOCl, 0.6% Carvacrol emulsion and MTAD were used as final irrigants in groups A, B and C respectively. Data were analyzed using Kruskal-Wallis and Mann-Whitney U tests. RESULTS: There was no meaningful difference in bacterial reduction between groups A and B; however, group C showed significantly lower efficacy compared to other groups (P<0.05). CONCLUSION: The 0.6% Carvacrol disinfects root canals effectively. It also has anti-inflammatory qualities and therefore may be an acceptable alternative for NaOCl.


Keywords

Carvacrol, Enterococcus faecalis, MTAD, Sodium hypochlorite



DOI: https://doi.org/10.22037/iej.v4i3.1417

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