Abstract
Aim: The purpose of this in-vitro study was to compare the effect of carbamide peroxide, 16% clinex-gel bleaching on shear bond strength using conventional bonding and self-etching primer bonding (SEP) and to find out how far the changes affect the shear bond strengths at clinically significant level on extracted human tooth enamel. Materials and Methods: Eighty freshly extracted human premolar teeth having moderate to severe dental fluorosis as per Dean's criteria were collected and divided into four groups of 20 each. The four groups are: Group I: Acid etching followed by bonding with Transbond XT (white), Group II: Bleaching, acid etching followed by bonding with Transbond XT (pink), Group III: SEP followed by bonding with Transbond XT (white). Group IV. Bleaching, acid-etching, followed by bonding with Transbond XT (pink). Results: There was a statistically significant difference between the four groups on comparing the mean shear bond strength of Group I, II, III, and IV by one-way analysis of variance test. Summary and Conclusion: Bleaching and bonding with SEP after 30 days storage have comparably similar shear bond strength to the unbleached acid etching group.
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