DOI: 10.36347/sjds.2019.v06i10.002

Pages: 458-466

The success of all vital pulp capping procedures depends on a proper bond between the pulp capping agent and the restorative material. If these two materials fail to bond, the bacterial toxins may penetrate into the pulp and the pulp capping procedure will fail. The present study is undertaken to evaluate the shear bond strength of three popular pulp capping agents namely, MTA, Biodentine and light cure calcium hydroxide to a new self-adhering flowable composite and resin modified GIC. Sixty acrylic blocks were prepared with a hole of 3mm diameter and 1.5mm height at the centre of the block. They were divided into 6 groups of 10 each. Group 1, MTA, Group 2, Biodentine and Group 3, light cure calcium hydroxide, over which self-adhering flowable composite(Dyad Flow) was placed in a plastic cylinder with a height and diameter of 2mm. In Group 4, MTA, Group 5 Biodentine and Group 6 light cure calcium hydroxide, over which resin modified GIC was placed in a similar manner as mentioned earlier. Shear bond strength was tested for failure using a universal testing machine with a crosshead speed of 1mm/min. The results demonstrated that the MTA - RMGIC and light cure calcium hydroxide - groups showed significantly higher shear bond strength values than the other groups. There is no statistically significant difference between MTA - RMGIC and light cure calcium hydroxide - RMGIC groups. The highest shear bond strength was shown by MTA - RMGIC group, followed by light cure calcium hydroxide - RMGIC group > Biodentine - RMGIC group > MTA – self adhering flowable composite group > Biodentine – self adhering flowable composite group. And the lowest shear bond strength was shown by light cure calcium hydroxide – self adhering flowable composite group. The groups with RMGIC showed significantly higher shear bond strength values than the groups with self-adhering flowable composite. MTA has emerged as the endodontic material. Its high bond strength and good compatibility with resin