الفهرس 
Shear bond strength of orhtodontic brackets after using different bleaching types and antioxidant treatment
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Abstract
Aim of the study: The present study was carried out to measure the shear bond strength of orthodontic brackets using different types of enamel bleaching after two waiting periods and antioxidant application. Regarding the results of shear bond strength of orthodontic brackets of this study revealed a significant increase of shear bond strength after 5 weeks with both types of bleaching. Furthermore, there was no significant difference between zoom in-office and at-home bleaching among all groups. Also there was no difference in the shear bond strength between the control group and after 1 week with at-home and in-office bleaching. A significant decrease of shear bracket bond strength was obtained after antioxidant treatment