The Evaluation of Apical Microleakage of Different Root Canal Sealers

The aim of this study was to compare the apical microleakage of different root canal sealers using dye leakage method. 47 single-rooted teeth were decoronated at the cemento-enamel junction leaving a standard root length of 14 mm. all the roots were instrumented with protaper rotary files to an apical size of f3(#30). the 39 root canals were obturated using cold lateral compaction as follows: group 1(n=13): ah26+gutta-percha. group 2(n=13): endorez+gutta-percha. group 3(n=13): iroot sp+gutta-percha. the remaining eight teeth were used as positive and negative controls. the roots were embedded in methylene blue dye solution for 72 hours and split longitudinally. dye penetration in the apical region was measured using a stereomicroscope. the data was statistically analysed with one-way anova and post-hoc tukey tests. endorez group showed statistically significantly more leakage than the iroot sp group (p=0.001).