Aim: The study aimed to evaluate the PBS of End sequence bio ceramic sealer hiflow and endoseaL MTA with single cone obturation techniques.

Materials and Methods: Twenty extracted single-root human teeth of similar sizes and circular canals were randomly selected and stored in distilled water at 4 °C.

Results: All specimens showed measurable adhesive properties to root dentin. In addition, no premature failure occurred. Overall, the push-out bond strength was the highest in the coronal third and lowest in the apical third. Endosequence bioceramic sealer hiflow specimens displayed statistically higher bond strengths (p=0.0012, 0.51- 5.9 MPa). Endoseal MTA showed the lowest bond strengths.

Conclusion: Endosequence bioceramic sealer hiflow Group had a significantly higher PBS value than other Group from the apex. At 5 and 10 mm from the apex, no significant difference in PBS was found among the endosequence bioceramic sealer hiflow and endoseal MTA (P>0.05). The most common failure mode found in all Groups was a mixed failure.