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Evaluation and comparison of bond strength to 10% carbamide peroxide bleached enamel following the application of 10% and 25% sodium ascorbate and alpha-tocopherol solutions: An in vitro study.

*, Thapa A and Pai, ARV and *, Thomas MS (2013) Evaluation and comparison of bond strength to 10% carbamide peroxide bleached enamel following the application of 10% and 25% sodium ascorbate and alpha-tocopherol solutions: An in vitro study. Journal Of Conservative Dentistry, 16 (2). pp. 111-115.

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Abstract

Aim: The purpose of this study was to evaluate and compare the shear bond strength of composite resin to 10% carbamide peroxide bleached enamel following the 10 minutes application of 10% and 25% sodium ascorbate (SA) and alpha-tocopherol (TP) solutions. Methodology: Sixty extracted human premolars were randomly divided into six study groups (groups I to VI), each consisting of ten samples. Groups I and VI served as unbleached and bleached control respectively. Groups II, III, IV and V served as treatment groups and were subjected to 10% carbamide peroxide bleaching followed by application of 10% SA, 25% SA, 10% TP and 25% TP solutions, respectively. Following composite resin bonding, shear bond strength was determined and the results were analysed using ANOVA and Tukey test. Results: In comparison to unbleached control group I, only group IV had significantly lower bond strength. In comparison to bleached control group VI, except group IV, groups II, III and V showed statistically higher bond strength.Conclusion: Following 10% carbamide peroxide bleaching, except 10% alpha tocopherol solution, 10 minutes application of both 10% and 25% sodium ascorbate solutions and 25% alpha tocopherol solution may play a significant role in improving the shear bond strength of composite resin to enamel.

Item Type: Article
Uncontrolled Keywords: Carbamide peroxide, sodium ascorbate solution, alpha tocopherol solution, shear bond strength
Subjects: Dentistry > MCODS Mangalore > Conservative Dentistry
Depositing User: KMCMLR User
Date Deposited: 25 Mar 2013 09:44
Last Modified: 25 Mar 2013 09:44
URI: http://eprints.manipal.edu/id/eprint/79284

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