Purpose: A radiopaque self-polymerizing adhesive resin was prepared by incorporating bismuth subcarbonate-poly(methyl methacrylate) prepolymerized composite (BS-PMMA) into an acrylic resin. The purpose of this study to evaluate the radiopacity resins.Methods: As a component, containing 50% subcarbonate used, and other metal compounds were adopted as controls. They added finely pulverized PMMA. ...