To assess the push-out bond strength of new calcium silicate-based endodontic sealer (Bioroot rcs)-an in vitro study

Abstract

Aim: To evaluate and compare the push-out bond strength of root filled with Endosequence BC, AH Plus and Endometha-sone N sealers using lateral condensation and thermoplasticized technique. Materials and Methods: Thirty specimens with complete obturation through lateral condensation were formed. Teeth were decoronated, working length was determined. Instrumentation and irrigation were performed. Teeth were then obturated with Group 1(AH plus) (n = 15) or Group 2-Bioroot RCS (n = 15). Each group had 5 samples each based on the coronal, middle and apical region in the form of a disc of 2mm each. Each sample was then subjected to a micro push-out test. Data was analyzed with ANOVA. Results: AH Plus sealer in Group 1 showed (37 ± 1.67 MPa) push-out bond strength . The mean strength of Bioceramic sealer Group 2 was higher (46 ± 0.76 MPa) . Conclusions: The push-out bond strength of Bioroot RCS sealer was higher than the AH Plus root canal sealer in coronal and apical specimens.