Effect of antioxidant agents on bond strength of composite to bleached enamel with 38% hydrogen peroxide

Silva, Juliane Marcela Guimaraes da; Botta, Ana Carolina; Barcellos, Daphne Câmara; Pagani, Clóvis; Torres, Carlos Rocha Gomes

doi:10.1590/s1516-14392011005000031

Cited by 20 publications

(26 citation statements)

References 19 publications

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“…1,7, 8 However, that methods cause discomfort, then improve the adhesion of composite resins on non-vital tooth used antioxidant ingredients. Applications of antioxidant ingredients aims to reduce the waiting time between bleaching and restoration procedures to the disappearance of reactive oxygen species on the surface of the tooth.…”

Section: 611mentioning

confidence: 99%

Antioxidant effectivity to decrease coronal microleakage of composite resin restoration after intra-coronal bleaching

Yusri¹,

Dharmautama²,

Machmud³

et al. 2016

J Dentomaxillofac Sci

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Objective: This study aimed to compare the ability of the three antioxidant ingredients and a minimal application to decrease microleakage of composite resin restoration after intracoronal bleaching. Material and Methods: Fifty maxillary firstincisor that met the inclusion criteria were prepared endodontic treatment. They are divided into 10 groups: control group (no antioxidant), sodium ascorbate 10%, catalase 10% and sodium ascorbate 10% with Tween 80 0.2% and an application period of 1 hour, 24 hours and 48 hours. Applied hydrogen peroxide 35% for 5 days. Samples were restored with composite resin and coated with nail polish, placed China ink for 24 hours. Results: Coronal microleakage was assessed using a stereomicroscope, which showed presented a significant different (ρ<0.05) in 48 hours. Conclusion: Sodium ascorbate 10% with tween 80 0.2% had a significant effect in decreasing coronal microleakage in 48 hours.

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Section: 611mentioning

confidence: 99%

Antioxidant effectivity to decrease coronal microleakage of composite resin restoration after intra-coronal bleaching

Yusri¹,

Dharmautama²,

Machmud³

et al. 2016

J Dentomaxillofac Sci

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“…To avoid this waiting period various methods have been projected for example, utilisation of organic solvent that contain adhesives, alcohol treatment of the bleached enamel surface before restoration, removal of the outermost layer of enamel and the utilisation of antioxidants. 4 Among all the methods, the antioxidant treatment has shown immediate improvement in shear bond strength values, whereas other methods showed opposing results in regaining the bond strength values.…”

Section: Introductionmentioning

confidence: 99%

Effect of Three Different Antioxidants on Shear Bond Strength of Composites To Bleached Enamel - An In Vitro Study

2017

IJDA

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ABSTRACT:Context: Bleaching can result in reduced bond strength of composite resin to enamel. To overcome this, bonding procedure should be delayed by a period of 24 hours to three weeks to regain the reduced shear bond strength due to bleaching. To avoid this waiting period various methods have been projected. Among all the methods, the antioxidant treatment has shown immediate improvement in shear bond strength values. Objective:The aim of this in vitro study was to evaluate and compare the effect of 10% Sodium ascorbate, 10% Pomegranate peel extract and 10% Grape seed extract on the bond strength of composite resin to bleached enamel. Materials and Methods: Forty flat enamel surfaces were prepared from freshly extracted human premolars using a low speed diamond saw. Then the specimens were divided into four random groups (n = 10). All the groups were treated with 30% H2O2. The specimens in Group I were bonded immediately after bleaching, whereas Group II, III and IV were treated with antioxidants Sodium ascorbate, Pomegranate peel extract and Grape seed extract respectively. After preparation, a standard shaped resin composite was applied to all specimens. The teeth were stored in deionized water for 24hrs at 37°C and a universal testing machine determined their shear bond strength. The data were evaluated using ANOVA and Tukey Post Hoc tests.Results: There was a statistically significant difference in the mean shear bond strength among all the groups (p < 0.001). 10% Grape seed extract showed significantly higher shear bond strength followed by 10% Pomegranate peel extract and 10% Sodium ascorbate. Conclusion:The use of antioxidant immediately after bleaching the enamel surface, completely neutralizes the deleterious effects of bleaching and increases the shear bond strength significantly. Among the antioxidants, 10% Grape seed extract application after bleaching showed better bond strength.

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“…Among them, application of antioxidant agents such as sodium ascorbate (salt of vitamin C) and alpha-tocopherol (vitamin E) has shown encouraging results. [10–13] These agents restore the altered redox potential of the bleached surface and reverse the compromised bonding eliminating the need for delaying composite restorations following bleaching. [1415]…”

Section: Introductionmentioning

confidence: 99%

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

2013

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Aim:To evaluate and compare composite bond strength to carbamide peroxide bleached enamel following the application of 10% and 25% sodium ascorbate and alpha-tocopherol solutions.Materials and Methods:Sixty premolars were divided into six groups. Groups I and VI served as unbleached and bleached controls respectively. Groups II, III, IV and V served as the experimental groups and were subjected to 10% carbamide peroxide bleaching followed by 10 min application of 10% and 25% sodium ascorbate and 10% and 25% alpha-tocopherol solutions, respectively. Following composite bonding, shear bond strength was determined and the results were analyzed using ANOVA and Tukey highest significant difference test.Results:Only Group IV showed significantly lower bond strength when compared to Group I (unbleached control). When compared to Group VI (bleached control), except Group IV, groups II, III and V showed significantly higher bond strength. However, there was no statistically significant difference between the experimental groups corresponding to 10% and 25% and similar concentrations of sodium ascorbate and alpha-tocopherol solutions.Conclusion:Following 10% carbamide peroxide bleaching, except 10% alpha tocopherol, 10 min application of 10% and 25% sodium ascorbate and 25% alpha-tocopherol solutions significantly improves the shear bond strength of composite resin to enamel.

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Effect of antioxidant agents on bond strength of composite to bleached enamel with 38% hydrogen peroxide

Cited by 20 publications

References 19 publications

Antioxidant effectivity to decrease coronal microleakage of composite resin restoration after intra-coronal bleaching

Antioxidant effectivity to decrease coronal microleakage of composite resin restoration after intra-coronal bleaching

Effect of Three Different Antioxidants on Shear Bond Strength of Composites To Bleached Enamel - An In Vitro Study

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

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