Effect of Antioxidant on the Shear Bond Strength of Composite Resin to Bleached Enamel at Different Time Intervals: An In Vitro Study
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2018, Vol 3, Issue 3
Abstract
AIM: To evaluate the effect of antioxidant on the shear bond strength of composite resin to bleached enamel at different time intervals. Materials and methods: Labial enamel surfaces of 40 extracted human maxillary anterior teeth were used in this study. All samples were bleached with 35% hydrogen peroxide gel for 30 minutes. The samples were divided into two groups; Group I (n=20): bleaching and composite build-up. Group II (n=20): bleaching and application of antioxidant (green tea leaves extract) and composite build-up. Groups I and II were further subdivided into subgroup I a and I b and II a and II b according to testing time. Shear bond strength of the specimens was tested under universal testing machine whether the specimens were tested immediately or after one week. Results: Significantly higher shear bond strength were observed in Group II b i.e. bleaching followed by application of antioxidant and composite resin build up which is tested after 1 week. Conclusion: It can be concluded that use of antioxidant after bleaching increases the shear bond strength of composite resin to bleached enamel after time interval of 1 week.
Authors and Affiliations
Dr. Prach Mapari
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