Effect of Different Anti-Oxidants on Shear Bond Strength of Composite Resins to Bleached XXXX Enamel.

@entity620 @entity1 @entity12946
INTRODUCTION: The bond strength of the composite to the bleached enamel plays a very important role in the success and longevity of an aesthetic restoration. AIM: The aim of this study was to compare and evaluate the effect of Aloe Vera with 10% @entity620 on the Shear bond strength of composite resin to bleached @entity1 enamel. MATERIALS AND METHODS: Fifty freshly extracted @entity1 maxillary central incisors were selected and divided into 5 groups. Group I and V are unbleached and bleached controls groups respectively. Group II, III, IV served as experimental groups. The labial surfaces of groups II, III, IV, V were treated with 35% @entity12946 for 30mins. Group II specimens were subjected to delayed composite bonding. Group III and IV specimens were subjected to application of 10% @entity620 and leaf extract of Aloe Vera following the @entity12946 bleaching respectively. Specimens were subjected to shear bond strength using universal testing machine and the results were statistically analysed using ANOVA test. Tukey (HSD) Honest Significant Difference test was used to comparatively analyse statistical differences between the groups. A p-value <0.05 is taken as statistically significant. RESULTS: The mean shear bond strength values of Group V showed significantly lower bond strengths than Groups I, II, III, IV (p-value <0.05). There was no statistically significant difference between the shear bond strength values of groups I, II, III, IV. CONCLUSION: Treatment of the bleached enamel surface with Aloe Vera and 10% @entity620 provided consistently better bond strength. Aloe Vera may be used as an alternative to 10% @entity620 .
