Volume 5 Issue 6 (November - December), 2019

Original Articles

ASSESSMENT OF EFFECT OF REMINERALIZING AGENT ON BOND STRENGTH OF TWO DIFFERENT TYPE OF RESIN COMPOSITE ON PRIMARY ENAMEL- A COMPARATIVE STUDY
Maria Manhas

Background: Dental caries is a prevalent disease worldwide, and composites have become increasingly popular for restoring teeth damaged by caries, largely because of their esthetics. Composite compositions and properties have been substantially improved, yielding longer clinical lifetimes. Hence; the present study was undertaken for assessing effect of remineralizing agent on bond strength of two different type of resin composite on primary enamel. Materials & Methods: A total of 50 deciduous incisors were included in the present study. Only those specimens were included in which enamel was intact. All the specimens were broadly divided into two study groups as follows: Group 1: Specimens in which Tetric N-Ceram resin composite was used; and Group 2: Specimens in which Z250 Universal Restorative resin composite was used. In both the groups, shear bond strength was measured at a crosshead speed of 0.5 mm/min and the type of bond failure was recorded. Results: Mean bond strength among the specimens of group 1 was found to be 23.96 MPa while mean bond strength of specimens of group 2 was found to be 13.41 MPa. While comparing the mean bond strength in between the two study groups, it was observed that mean bond strength among the specimens of group 1 was higher in comparison to the mean bond strength of specimens of group 2, the results of which were found to be statistically significant. Conclusion: Tetric N-Ceram exhibited maximum bond strength as compared to Z250 Universal Restorative. Key words: Tetric N-Ceram, Z250 Universal Restorative, Remineralizing

 
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