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ORIGINAL ARTICLE
Year : 2012  |  Volume : 2  |  Issue : 2  |  Page : 70-74

Comparative evaluation of the antimicrobial efficacy of MTAD, oxytetracycline, sodium hypochlorite and chlorhexidine against Enterococcus faecalis: An ex-vivo study


Department of Conservative Dentistry and Endodontics, Sudha Rustagi College of Dental Sciences and Research, Kheri More, Village Bhopani, Faridabad, Haryana, India

Correspondence Address:
Sumit Gupta
Department of Conservative Dentistry and Endodontics, Sudha Rustagi College of Dental Sciences and Research, Kheri More, Village Bhopani, Faridabad, Haryana - 121 002
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1658-5984.108152

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Objectives: To evaluate and compare the antibacterial efficiency of MTAD, Oxytetracycline, 5% NaOCl, and 2% chlorhexidine when used as root canal irrigants against Enterococcus faecalis. Materials and Methods: Fifty extracted human single rooted anterior teeth were selected. The decoronated sterilized root samples were infected with 10μl of 24 hours pure culture suspension of E. faecalis for 48 hours except for 10 teeth in negative control group (Group V). The test samples were divided into four groups (n = 10) as: Group I- 5% Sodium Hypochlorite, Group II- MTAD, Group III- Oxytetracycline and Group IV- 2% Chlorhexidine. The root canals were instrumented while using respective root canal irrigant solution. The bacterial cultures were taken from each root canal and colony forming units were counted on agar plates. The data was statistically analyzed. Results: It was observed that Group-III (Oxytetracycline) showed the maximum antibacterial efficacy against E. faecalis followed by Group II (MTAD), Group IV (2% Chlorhexidine), Group I (5% Sodium hypochlorite). Conclusion: Oxytetracycline has a great potential as a root canal irrigating agent because of its superior antimicrobial efficacy against E. faecalis, easy availability and cost effectiveness.


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