Acid Challenge on Push-Out Bond Strength of Three Different Tricalcium Silicate Cements: An In-vitro Study

Aim: To evaluate the impact of environmental pH on intra-radicular dentin push-out bond strengths MTA, MTA HP, and Biodentine.
 Materials Methodology: Freshly extracted human mandibular single-rooted premolars or maxillary anterior incisors that were either intact contained only small carious lesions selected.120 mid root dentins is horizontally divided into 1.0 mm thick slices 3 BIODENTINE groups. The compressive load applied at a speed 0.5 mm/min by exerting downward pressure outer surface using 1.00 diameter cylindrical stainless-steel plunger. Maximum to was reported in newtons time dislodgement converted megapascals. 1-way analysis variance test used compare strength groups with same storage (4 34 days), followed pair-wise comparison Tukey post hoc test. Student's t-test 3-group means. At P = .005, degree significance set. Thus clinical importance present study states considering several factors like microhardness, composition products, particle sizes plays critical role selection end filling material.
 Results: There significant difference between (P .001) after 4 days PBS Acid condition, where Bio dentine had significantly highest strength.
 Conclusion: BIODENTINE, materials interface increases over 30 solution 7.4, an initial acid challenge acetic 5.4, which decreases strength.