Repair strength of dimethacrylate-based composites resins: Effect of sandblasting, adhesive bonding, and thermocycling.

Background: The goal of this study is to determine the effect of different sandblasting particles and dental adhesive systems on the repair strength of dimethacrylate-based composite resins.

Materials And Methods: In this study, 96 specimens of X-trafil composite blocks were prepared and divided into eight groups ( = 12). Four groups were sandblasted with Aluminum Oxide (AL) and four other groups with Bio-Active Glass particles (BAG).