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Sealing ability of mineral trioxide aggregate and Biodentine as the root end filling material, using two different retro preparation techniques - An in vitro study

Ankita Khandelwal, Karthik J, Roopa R Nadig, Arpit Jain


 Aim: The purpose of this study is compare sealing ability of mineral trioxide aggregate (MTA) and Biodentine as root end filling material, and also to compare the effect of different retro preparation techniques i.e. conventional bur v/s ultrasonic tips on sealing ability of both the root end filling materials. Materials and Methods: Totally, 40 extracted human single rooted teeth were decoronated, and root canal treatment was performed. Teeth were stored in saline for 1 week. Following which, root ends were apically resected at 90° angle to a long axis of the root and prepared. The samples were randomly divided into two groups of 20 specimens each. Group I: MTA, Group II: Biodentine as the root end filling. Each group was subdivided as A - round bur preparation and B - ultrasonic tip root end preparation. Samples were stored in saline for 48 h and then immersed in 0.5% rhodamine B dye for 24 h, sectioned and evaluated for leakage under confocal laser scanning microscope. Results: Statistical analysis of readings was done using factorial ANOVA. Biodentine and ultrasonic preparations showed significantly less microleakage than MTA and bur preparations. Conclusion: Biodentine can be used as a replacement for MTA, as a root end filling material.


Biodentine; confocal laser scanning microscope; microleakage; mineral trioxide aggregate

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