Abstract

Aim The aim of the study was to examine the sealing ability of a root-canal sealer using different endodontic irrigants and to measure the microleakage using a fluid transport model. Material and Methods 170 maxillary and mandibular anterior human teeth with single bilnded were selected for this study. The root canals were instrumented using the crown-down technique with HEROShaper and were irrigated with 5.25 % NaOCl. The smear layer was removed by washing in 10 ml of 17% EDTA. The specimens randomly divided into 16 groups (root-canal sealings; SealiteUltra, Diaket, AH-Plus, Ketac-Endo and irrigation solutions; NaOCl, 2 % CHX, 1% CHX gel+NaOCl, 1% CHX gel+SS ) of ten teeth and two control groups of five teeth and obturated by lateral condensation. In order to measure the microleakage, a fluid transport model was used and leakage value for each group was calculated and recorded. Four specimens from each group were used for SEM examinations (scanning electron microscopy). Results The best results are taken when Ketac-Endo with 2% CHX solution used. The results proved that there is no significant difference between root-canal sealers. As for irrigant solutions, NaOCl solution caused more microleakage than 1% CHX Gel+SS and 1% CHX Gel+NaOCl solutions and the results are statistically significant. Conclusion The study shows that the best irrigant solutions for all rootcanal sealers are 1% CHX+SS and 1% CHX+NaOCl.

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