Objectives: To evaluate the apical seal of different types of root canal sealers in dry and moist condition.
Materials and methods: Forty eight sound premolar teeth were decoronated. Canals were prepared with protaper rotary system up to predetermined working length. Samples were divided into two groups according to the moisture condition of canals (dry and wet). Each group was subdivided into three groups according to the type of root canal sealers (Endosequence, Epoxy resin and zinc oxide Eugenol). Roots were painted with nail varnish leaving apical part and immersed in indian ink for three days. Samples were sectioned longitudinally and split. The apical dye penetration in millimeters was measured under stereomicroscope at 40x. Data was analyzed with one way ANOVA and student T-test at 0.05 level of confidence.
Result: Significant difference in microleakage between different sealer types (p<0.05). ZOE sealer show highest microleakage value in comparison to the other types while no difference was seen between Bioceramic and Epoxy sealers ( P>0.05). Significant difference was observed between the conditions in Bioceramic sealer only with higher leakage was recorded under dry condition (p<0.05).
Conclusion: Sealer types and moisture conditions influenced the sealing ability of the evaluated sealers. Bioceramic has better performance than other sealers especially under moist condition.
