A study to evaluate and compare the apical sealing ability of MTA, Biodentine, and TotalFill BC RRM Putty in simulated immature teeth

Background: Adequate seal of the root canal is necessary to prevent recontamination and ensure long-term clinical success. The aim of this study was to evaluate the sealing ability of ProRoot mineral trioxide aggregate (MTA), Biodentine, and Total Fill Bioceramic Root Repair Material Putty as the root canal obturation materials using the dye penetration test. Materials and Methods: In this in vitro study, a total of All 68 human teeth were mounted on an experimental setup. Teeth were randomly divided into four groups: Group 1 – A 4 mm apical plug of premixed TotalFill BC RRM Putty; Group 2 – A 4 mm apical plug of hand-mixed MTA; Group 3 – A 4 mm apical plug of mechanically mixed MTA was placed; and Group 4 – A 4 mm apical plug of mechanically mixed Biodentine was placed. Results: There is a statistically significant difference between Group II and Group III along the root canal wall (P < 0.05). There is no significant difference between Group I and Group IV along the root canal walls (P > 0.05). The lowest mean value of microleakage was recorded by Group I, whereas the highest mean value of microleakage was shown by Group II. Conclusion: Within the limitation of this study, none of the root-end filling materials were free from microleakage. Among these materials, TotalFill BC RRM Putty showed the least microleakage along the root canal walls. However, the validity of this in vitro study could be appreciated only through further clinical trials.