Aim: The purpose of this present study was to evaluate the sealing ability of Glass Ionomer Cement (GIC), Biodentine, Mineral Trioxide Aggregate (MTA) and Bone Cement when used as a retrograde filling material.
Materials and Methods: Eighty extracted human maxillary anterior incisor teeth were obturated and stored in normal saline, and after the period of one week all the samples were resected apically at an angle of 90° and root end cavities were prepared. Teeth were divided into four groups of twenty specimens each, in Group I –Biodentine, Group II – Bone Cement, Group III - MTA, Group IV – GIC were used as a retrograde filling materials. The teeth were stored in humidifier and later coated with nail varnish except at the apical 1 mm. After drying the specimens were immersed in 0.2% Rhodamine-B dye for 72 hours. The teeth were rinsed under water for 15 minutes and sectioned longitudinally. All the samples were evaluated under stereomicroscope for determining the dye penetration in millimeters.
Statistical analysis used: All statistical analysis was done using SPSS version 17 using ANOVA with post-hoc test.
Results: The mean microleakage was significantly higher in GIC followed by MTA, Bone cement and least with Biodentine.
Conclusion: Biodentine has better sealing ability as root end filling material in comparison to MTA, Bone Cement and GIC.