The Effect of Antioxidants on the Bond Strength of Resin Composite to Bleached Enamel

Fares, Hala; Samman, Muhammad A; Ghazawy, Saad Eldin S. El

doi:10.21608/edj.2017.76449

Cited by 2 publications

(1 citation statement)

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“…In addition, one of the constituents of pomegranate is ascorbic acid (48) which might further explain this result. This finding was in agreement with Sharafeddin et al, 2015 and Fares et al, 2017 (25,50) who investigated the effect of pomegranate on bond strength to enamel after tooth bleaching and revealed satisfactory results.…”

Section: Discussionsupporting

confidence: 91%

Effect of Pomegranate and Banana Extracts on Microshear Bond Strength of Resin Composite to Bleached Bovine Enamel: An In-Vitro Study

2022

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Purpose: To evaluate the effect of pomegranate and banana extracts (natural antioxidants) versus ascorbic acid (synthetic antioxidant) prepared in 10% and 15% concentrations on microshear bond strength (µSBS) to bleached enamel. Materials and Methods: A total of 56 bovine incisors were selected for the current study. Forty teeth were used for microshear bond strength and divided into 5 groups according to antioxidant type; Group 1: No bleaching + No antioxidant (negative control), Group 2: Bleaching + No antioxidant (positive control), Group 3: ascorbic acid, Group 4: pomegranate extract and Group 5: banana extract. Groups 3,4 and 5 were further divided into 2 subgroups according to concentration of antioxidant: 10% and 15%.Bleaching gel was applied according to manufacturer instructions. Antioxidants were applied for 10 min. Composite specimens were prepared and tested for µSBS using universal testing machine. Sixteen bovine incisors were prepared and tooth-restoration interfaces were assessed using SEM. Data were tabulated and statistically analyzed.Results: Negative control and 15% ascorbic acid recorded the highest mean µSBS values followed by 15% and 10% pomegranate groups. No significant difference was reported between 10% ascorbic acid and 15% banana. Lowest mean values were obtained with 10% banana and positive control groups with no significant difference between them. Conclusions: Pomegranate in both concentrations and 15% banana extract could partially reverse compromised bond strength. Use of 15% ascorbic is able to totally regain bond strength to bleached enamel. Banana extract in low concentration is not beneficial in improvement of bond strength after bleaching.

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Section: Discussionsupporting

confidence: 91%

Effect of Pomegranate and Banana Extracts on Microshear Bond Strength of Resin Composite to Bleached Bovine Enamel: An In-Vitro Study

2022

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Natural Dental Antioxidants

Essam

2024

Natural Conservative Dentistry: An Alternative Approach to Solve Restorative Problems

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Discoloration of teeth is a common concern among patients seeking cosmetic treatment. The color of teeth can be affected by various factors, both internal and external, such as ingestion of chemicals or consumption of foods that can cause staining. Currently, there are numerous products available in the market that claim to remove stains and whiten teeth. These options include professional prophylaxis, bleaching gels applied to vital teeth for home use, or supervised application in a dental office. Bleaching gels typically contain varying concentrations of carbamide or hydrogen peroxide and are applied using different methods, resulting in different activation mechanisms that promote tooth bleaching through oxi-reduction reactions. Unfortunately, bleaching agents have an adverse effect on bonding to enamel. This is because of the free radicals generated by the breakdown of hydrogen peroxidecontaining bleaching agents. The free radicals hinder the resin infiltration in the interprismatic spaces, inhibit resin polymerization , and restrict resin tag creation. These free radicals are eliminated from the body within a span of 24 hours to 3 weeks, and the bond strength to enamel is restored. So bonding should be postponed for 1-3 weeks so that the bond strength is restored, but this waiting period is not always clinically possible. The use of antioxidants could be a possible solution to immediately restore the reduced bond strength. Antioxidants could be either synthetic or natural. Although synthetic antioxidants proved to have the ability to restore bond strength, they have many adverse effects. Natural antioxidants could be a good alternative to synthetic ones with no side effects.

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The Effect of Antioxidants on the Bond Strength of Resin Composite to Bleached Enamel

Cited by 2 publications

References 8 publications

Effect of Pomegranate and Banana Extracts on Microshear Bond Strength of Resin Composite to Bleached Bovine Enamel: An In-Vitro Study

Effect of Pomegranate and Banana Extracts on Microshear Bond Strength of Resin Composite to Bleached Bovine Enamel: An In-Vitro Study

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