Evaluation Of The Push-out Bond Strength Of The Bio-C Repair And Compare It With The Mineral Trioxide Aggregate And Amalgam When Used As Root-end Filling Material: An In Vitro Study

We aimed to assess the push-out bond strength of BIO-C REPAIR (a ready-to-use bioceramic material), and compare it with the mineral trioxide aggregate (MTA) and аmаlgаm.

A total of 30 single-rooted, straight human maxillary central incisors were chosen. To keep the root canal length at 15 mm, the crown was resected. The teeth underwent endodontic treatment, along with the resection of their root ends and preparation of root-end cavities. The teeth were randomly allocated into three groups as follows: BIO-C REPAIR, MTА, and Zinc-free аmаlgаm. Utilizing a universal testing machine, the push-out test was done and the digital microscope was used to assess failure made. Data were analyzed by the one-way ANOVA and chi-square test using the Python software.

Statistically significant difference was found among study groups regarding push-out bond strength (p <0.001) and mode of failure (p < 0.001). Post-hoc test showed MTA has significantly lower push-out bond strength than BIO-C REPAIR and amalgam (p <0.001).

Within the limitation of this study, the push-out bond strength for BIO-C REPAIR was higher than the MTA and nearly similar to the amalgam.