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

Kadiyala, Anirudh; Saladi, Hari Krishna; Bollu, Indira Priyadarshini; Burla, Devipriya; Ballullaya, Srinidhi Vishnu; Devalla, Srihari; Maroli, Sohani; Jayaprakash, Thumu

doi:10.7860/jcdr/2015/16140.6790

Cited by 12 publications

(12 citation statements)

References 20 publications

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“…Some authors proposed the removal of the superficial layer of enamel [11]. Other reports have suggested the use of adhesives containing organic solvents [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Bleaching Protocols, Used with and without Sodium Ascorbate, on Bond Strength between Composite and Enamel

et al. 2020

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This in vitro study aims to evaluate whether a solution of 10% sodium ascorbate (SA) may exert a beneficial effect on the bonding of composite to enamel after using different bleaching agents and protocols. Microtensile bond strength (µTBS) was evaluated on 72 freshly extracted human central incisors, divided into eight experimental groups and one control group (total n = 9): Group 1 serves as control (nonbleached). Group 2 was bleached with 5% carbamide peroxide. Group 3 was bleached with 5% carbamide peroxide and then treated with 10% SA. Group 4 was bleached with 10% carbamide peroxide. Group 5 was bleached with 10% carbamide peroxide, then treated with 10% SA. Group 6 was bleached with 16% carbamide peroxide. Group 7 was bleached with 16% carbamide peroxide, then treated with 10% SA. Group 8 was bleached with 6% hydrogen peroxide. Group 9 was bleached with 6% hydrogen peroxide, then treated with 10% SA. All groups were restored immediately after the different treatments using a resin composite. The µTBS values were measured using a universal testing machine and statistical analysis was performed by means of normality and variance analyses, SIDAK test for univariate test and multiple comparisons, and Student test to compare µTBS values of each group with the control. The mean µTBS values in groups 2, 4, 6, 8 were significantly lower than controls. For groups 3, 5, 7, 9, subjected to antioxidant (10% SA) application, all µTBS values increased significantly. However, only for Groups 3 and 5 there was no significant difference with the control. Applying 10% SA for 10 min may improve the bond strength composite/bleached enamel just when whitening is performed with 5% and 10% carbamide peroxide.

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“…Some authors proposed the removal of the superficial layer of enamel [11]. Other reports have suggested the use of adhesives containing organic solvents [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Bleaching Protocols, Used with and without Sodium Ascorbate, on Bond Strength between Composite and Enamel

et al. 2020

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“…22,28 The use of antioxidants eliminates the remaining oxygen in the enamel structures immediately after bleaching, thereby enabling immediate bonding of the brackets. [8][9][10][11][12][13][14][15] Sodium ascorbate is a sodium salt of ascorbic acid that shows effective antioxidant ability and is capable of neutralizing and reversing the oxidant effect of bleaching agents in dental structures. 3,5,[8][9][10][11][12][13][14][15][16][17] Several studies have proven that 10% SA treatment of bleached teeth for 10 minutes before bonding of brackets reduces the degree of SBS reduction, 5,23,24 and another study found that application of 35% SA for 2 minutes was effective and proved beneficial.…”

Section: Discussionmentioning

confidence: 99%

“…6,7 Compromised bond strength between the adhesive and bleached teeth has been documented in many studies. 1,3,[8][9][10][11][12][13][14][15] Delaying treatment after bleaching is not always practical, as many patients who have traveled from distant areas or have other commitments may require rapid treatment. To avoid these delays, application of various antioxidants either in gel or solution form has been proposed and investigated in many studies.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11][12][13][14][15] The efficiency of sodium ascorbate (SA) in reversing the reduced bond strength in bleached enamel has been proven in many studies, [11][12][13][14][15] although few studies have indicated that SA was ineffective when applied for 10 minutes. 9,10 Other antioxidants, such as 10% α-tocopherol, 9 Aloe vera, 12 pine bark extract, 13 and grape seed extract, 14 have also shown effectiveness in reversing the bond strength reduction in bleached enamel. A few recent studies reported that 10% green tea (GT) had a satisfactory effect in reversing the SBS reduction in bleached enamel after an application time of 60 minutes to 2 hours.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Antioxidants on the Shear Bond Strength of Orthodontic Brackets Bonded to Bleached Human Teeth: An In Vitro Study

Baidas

Al-Rasheed

Murad

et al. 2020

The Journal of Contemporary Dental Practice

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Aim:The aim of this study was to evaluate the effects of different concentrations of sodium ascorbate (SA), green tea (GT), and chamomile (CM) on the shear bond strength (SBS) of metal orthodontic brackets bonded to teeth bleached with 40% hydrogen peroxide (HP). Materials and methods: Ninety-four sound premolars were divided into eight groups: group I (control + no bleaching), group II (bleaching + immediate bonding), group III (bleaching + 10% SA), group IV (bleaching + 35% SA), group V (bleaching + 0.5% GT), group VI (bleaching + 1% GT), group VII (bleaching + 0.5% CM), and group VIII (bleaching + 1% CM). In groups III-VIII, teeth were treated with the antioxidants for 10 minutes after bleaching with 40% HP, but before bonding. All the specimens were bonded with the resilience adhesive, and the SBS was tested with a universal testing machine (Instron 5965). The cross-head speed to break the bond was 1 mm/minute. The adhesive remnant index (ARI) was tested under 50× magnification. One-way analysis of variance, Tukey's post hoc, and Chi-squared tests were used for analysis (p ≤ 0.05). Results: The differences in SBS among the eight tested groups were highly significant (p < 0.001). Comparison of the eight groups using Tukey's post hoc test revealed significantly lower SBS (p < 0.001) in test groups II, III, IV, and VIII than in group I. Adhesive remnant index scores showed significant intergroup differences (p = 0.005). Most groups had a failure score of 1 (<50% of the bonding material adhering to the tooth), whereas groups II and VIII showed a failure score of 0 (no material adhering to the tooth). Conclusion: Bond strength can be enhanced by using 0.5% or 1% GT or 0.5% CM to allow bracket bonding immediately after bleaching. Clinical significance: The use of antioxidants would allow clinicians to bleach teeth before orthodontic treatment without delaying bonding.

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“…11 Previous research has shown that up to ten minutes' application of 10% sodium ascorbate is effective in increasing the shear bond of composite resin in bleached teeth by 15-35% carbamide peroxide. [12][13][14] Carbamide peroxide is the material commonly used for extra coronal bleaching on vital teeth. In intracoronal bleaching, the most commonly used material is 35% H 2 O 2 .…”

Section: Dental Journal (Majalah Kedokteran Gigi)mentioning

confidence: 99%

Composite resin shear bond strength on bleached dentin increased by 35% sodium ascorbate application

Nugraheni

Nuryono

Sunarintyas

et al. 2017

Dent. J. (Maj. Ked. Gigi)

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

Cited by 12 publications

References 20 publications

The Effect of Different Bleaching Protocols, Used with and without Sodium Ascorbate, on Bond Strength between Composite and Enamel

The Effect of Different Bleaching Protocols, Used with and without Sodium Ascorbate, on Bond Strength between Composite and Enamel

Effects of Antioxidants on the Shear Bond Strength of Orthodontic Brackets Bonded to Bleached Human Teeth: An In Vitro Study

Composite resin shear bond strength on bleached dentin increased by 35% sodium ascorbate application

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