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Mehrvarzfar P, Saghiri MA, Karamifar K, et al. A comparative study between resilon and gutta-percha as a secondary root canal filling materials: an in vitro study. Iran Endod J. 2010;5(3):117-20
Mehrvarzfar, P., Saghiri, M. A., Karamifar, K., Khalilak, Z., & Maalek, N. (2010). A comparative study between resilon and gutta-percha as a secondary root canal filling materials: an in vitro study. Iranian endodontic journal, 5(3), 117-20.
Mehrvarzfar, Payman, et al. "A comparative study between resilon and gutta-percha as a secondary root canal filling materials: an in vitro study." Iranian endodontic journal vol. 5,3 (2010): 117-20.
Mehrvarzfar P, Saghiri MA, Karamifar K, Khalilak Z, Maalek N. A comparative study between resilon and gutta-percha as a secondary root canal filling materials: an in vitro study. Iran Endod J. 2010;5(3):117-20. Epub 2010 Aug 15. PMID: 23130036; PMCID: PMC3471581.
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Iran Endod J. 2010;5(3):117-20. Epub 2010 Aug 15.

A comparative study between resilon and gutta-percha as a secondary root canal filling materials: an in vitro study.

Iranian endodontic journal

Payman Mehrvarzfar, Mohammad Ali Saghiri, Kasra Karamifar, Zohre Khalilak, Nahid Maalek

Affiliations

  1. Department of Endodontics, Dental School, Azad University of Medical Science, Tehran, Iran.

PMID: 23130036 PMCID: PMC3471581

Abstract

INTRODUCTION: Adequate root canal seal following retreatment is essential for a successful outcome. Resilon/Epiphany (R/E) obturation system has been introduced as a substitute for conventional gutta-percha/sealer method. This in vitro study compared the amount of apical microleakage of R/E with gutta-percha/AH26 (GP/AH26) sealer as secondary root canal filling following retreatment in human teeth.

MATERIALS AND METHODS: Fifty human single-rooted lower premolar teeth were selected. After preparing them with ProTaper rotary NiTi instruments, all the canals were obturated using GP/AH26 sealer. After 10 days, all the samples were retreated using the same rotary NiTi instruments. The samples were divided randomly into two experimental groups A and B (n=20) and positive and negative control groups (n=5). In group A, all canals were obturated using GP/AH26 sealer and in group B all canals were obturated using R/E. After one week incubation in 37˚C with 100% humidity, the amount of apical microleakage was evaluated with fluid filtration model. All the apical microleakage data were analyzed with Mann-Whitney U test.

RESULTS: The mean amounts of apical microleakage were 0.317 ± 0.287 and 0.307 ± 0.281 µL/8min (fluid pressure=30 cm H2O) in experimental group A and B respectively; the difference was not statistically significant (P>0.05).

CONCLUSION: R/E seems to be a good alternative for retreatment as a secondary root canal filling material. However, Resilon/Epiphany obturation system does not completely avert microleakage.

Keywords: Apical Microleakage; Fluid Filtration Model; Resilon; Retreatment

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