Journal of Conservative Dentistry
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Year : 2015  |  Volume : 18  |  Issue : 6  |  Page : 474-478

Antimicrobial efficacy of different root canal sealers by using real-time polymerase chain reaction: An ex vivo study

Department of Conservative Dentistry and Endodontics, Rajas Dental College and Hospital, Tirunelveli, Tamil Nadu, India

Correspondence Address:
Dr. S Uma Maheswari
Department of Conservative Dentistry and Endodontics, Rajas Dental College and Hospital, Raja Nagar, Kavalkinaru, Tirunelveli, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-0707.168814

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Background: Root canal sealers help to minimize leakage, provides antimicrobial activity to reduce the possibility of residual bacteria, and to resolve periapical lesion. Aim: To compare five different root canal sealers against Enterococcus faecalis in an infected root canal model by using real-time polymerase chain reaction (RT-PCR). Settings and Design: Sixty human mandibular premolars were sectioned to standardize a uniform length of 14 mm. Fifty microliters of the inoculum containing E. faecalis were transferred into each microcentrifuge tube (n = 60). The samples were divided into six groups Tubli-Seal, Apexit Plus, Fillapex, AH Plus, RoekoSeal, and Positive control, respectively. Materials and Methods: Five groups after the incubation with the microorganism E. faecalis were coated with different root canal sealers and obturated using F3 ProTaper Gutta-percha point. The dentinal shavings were collected and analyzed for RT-PCR. Statistical Analysis: The mean difference between six groups was calculated using analysis of variance and post-hoc test. Results: The highest antibacterial activity was achieved with Tubli-Seal (1938.13 DNA in pictogram [pg]) and least by RoekoSeal (3034.54 DNA in pg). Conclusion: The maximum antimicrobial activity was achieved AH Plus and Tubli-Seal. RT-PCR can be used as a valuable and accurate tool for testing antimicrobial activity.

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