Sealing ability of two adhesive sealers in root canals prepared with different rotary file systems

Aim To evaluate the apical seal for two different adhesive sealers used with two different rotary systems. Materials and methods Forty extracted single-canaled premolars were cleaned, decoronated into equal length root specimens and randomly divided into two equal groups (n = 20). Root canals of root specimens in group 1 were prepared using iRace rotary files while those of group 2 were prepared using ProTaper Next files. Specimens of each group were further subdivided into two equal subgroups (n = 10). Specimens in subgroup 1 were obturated using bioceramic sealer while those of subgroup 2 were obturated using resin sealer. Microleakage test was conducted using dye penetration and longitudinal sectioning technique. Collected data were statistically analyzed using one-way analysis of variance and Tukey's comparison to stand over the difference between the tested subgroups at significance level of P value less than 0.5. Results There were no statistically significant difference between the tested subgroups and the sealers showed a comparable and satisfactory sealability. Conclusion Both bioceramic and resin sealers are comparable in their sealing ability when used for obturating root canals that were prepared with either iRace or ProTaper Next rotary files.