Evaluation of the Physical Properties of Different Bioceramic-Based Root Canal Sealers

Objective: The aim of this study was to evaluate the physicochemical properties of different bioceramic-based root canal sealers. Methods: Five bioceramic-based sealers; MTA Fillapex, TotalFill BC Sealer, BioRoot RCS, GuttaFlow Bioseal, Dia-Root Bio Sealer were compared with epoxy resin-based sealer (AH Plus) for this purpose. Ten samples of each sealer were prepared in according to the manufacturers' instructions and evaluated for radiopacity, solubility, flow and dimensional change tests. The data were statistically analyzed using One-Way ANOVA and Tukey post-hoc tests (p<0.05). Results: The AH Plus showed statistically higher radioopacity than all tested bioceramic-based sealers (p<0.01). A significantly higher solubility rate was observed for TotalFill BC Sealer (p<0.01). Dia-Root Bio Sealer, BioRoot RCS and AH Plus showed solubility rate less than 3% in compliance with ISO standards. TotalFill BC Sealer and MTA Fillapex showed higher flow rates than other tested sealers (p<0.01). Dia-Root Bio Sealer, GuttaFlow Bioseal, BioRoot RCS, TotalFill BC Sealer and AH Plus exhibited expansion above 0.1%, while MTA Fillapex showed shrinkage less than 1%. Conclusion: All the tested sealers met the ISO requirements for radioopacity and flow. Among the tested sealers only MTA Fillapex showed dimensional stability consistent with ISO standards. Dia-Root Bio Sealer, BioRoot RCS and AH Plus exhibited solubility rate in compliance with ISO standards. The recently introduced Dia-Root Bio Sealer demonstrated adequate radioopacity, flow and solubility, but its dimensional change rate was found to be higher than required by ISO standards.