Comparative Study of Push-out Bond Strength of Three Different Bioceramic Sealers to Root Dentin: An In Vitro Study

Aim: To compare the push-out bond strength of three different bioceramic endodontic sealers to root dentin: An in vitro study Materials and methods: Thirty extracted single-rooted human premolars with mature apices and straight canals were selected.The teeth were decoronated to standardize root length of 16 ± 1 mm, instrumented using ProTaper rotary files, and irrigated with NaOCl, EDTA, and saline.The samples were randomly divided into three groups (n = 10) based on the sealer used: • Group I: Cerafill root canal sealer (RCS) • Group II: BioActive RCS • Group III: CeraSeal Obturation was performed using the single-cone technique with F3 gutta-percha.The samples were coronally sealed, stored at 95% relative humidity at 37°C for 7 days, and embedded in acrylic resin.Root sections (2 mm thick) were obtained from the middle third and subjected to push-out bond strength testing using a universal testing machine at a crosshead speed of 1 mm/min.The maximum force at debonding was recorded in Newtons and converted to megapascals (MPa).Results: Among the three tested sealers, BioActive RCS demonstrated the highest push-out bond strength, followed by CeraSeal, while Cerafill RCS exhibited the lowest bond strength.Statistical analysis was performed using IBM SPSS Statistics 23, with a significance level of p < 0.05.Conclusion: Within the limitations of this in vitro study, BioActive RCS exhibited superior push-out bond strength compared to CeraSeal and Cerafill RCS.Further research, including clinical trials, is recommended to confirm these results.