Evaluation of the effect of different surface conditioning methods on shear bond strength of metal brackets bonded to aged composite restorations.

Introduction: There are controversies regarding the most reliable conditioning method of the aged composite surface to ensure optimum bond strength. The purpose of this study was to evaluate the shear bond strength of metal brackets to microhybrid composite restorations after different surface preparation techniques.

Materials And Methods: A total of sixty microhybrid composite samples were prepared using upper right central incisor celluloid crown as a mold.