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Comparative evaluation of antioxidants on the microshear bond strength of bleached enamel: An in vitro study
Shreya Dharni1, Nidhi Sharma1, Dakshita Joy Sinha1
1Department of Conservative Dentistry and Endodontics, Inderprastha Dental College and Hospital, Ghaziabad, Uttar Pradesh, India.
Background:
The aim was to compare and assess the effects of tocopherol, glutathione (GSH), and sodium ascorbate (SA) on bleached enamel's resin tooth-colored microshear bonding capacity.
Materials And Methods:
After flattening, out 120 sound human premolars and dividing the teeth into four groups: Group A: No bleaching or antioxidants (the control group), Group B received SA, Group C received GSH, and Group D received tocopherol.
Results:
The resin tooth-colored was bonded in just one step, and the microshear degree of adhesion of tooth-colored to bleached enamel was evaluated. The data were analyzed using a one-way ANOVA followed by the post hoc Tukey test.
Conclusion:
The microshear degree of adhesion (SBS) of tooth-colored resin diminishes after bleaching. Nonetheless, antioxidants such as SA and GSH can effectively restore the reduced degree of adhesion capacity.
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