DOI: 10.36347/sjds.2019.v06i07.002

Pages: 331-336

The aim of this study is to compare the sealing ability of three retro filling materials; Mineral Trioxide Aggregate, Biodentine and Bone Cement and to compare the effect of two different ultrasonic retro tips; stainless steel and diamond coated on the sealing ability of these materials. Sixty human mandibular premolars were decoronated and root canal treatment was performed. 3 mm of root apex was resected at 900 to the long axis of root were randomly divided into two groups of 30 specimens each. Retro cavity was prepared with stainless steel retro tips in group I and in group II using diamond coated tip. Subgroups IA and IIA were filled with Mineral trioxide aggregate (n = 10), Subgroups IIA and IIB were filled with Biodentine (n=10) and subgroups IC and IIC were filled with Bone Cement (n=10). The teeth were sectioned longitudinally through the centre after immersion in Rhodamine B solution. The sections were visualised under confocal laser scanning microscope for depth of dye penetration. Results: Biodentine showed least dye penetration followed by MTA and Bone Cement. Diamond coated retro tips performed better than stainless steel retro tips. Conclusion: Biodentine group showed excellent sealing ability than MTA and Bone Cement. Diamond coated retro tip groups showed least leakage than stainless steel retro tip groups.