Indirect resin composite restorations bonded to dentin using self-adhesive resin cements applied with an electric current-assisted method

摘要

Purpose: To evaluate the effects of an electric current-assisted application on the bond strength and interfacial morphology of self-adhesive resin cements bonded to dentin.Methods: Indirect resin composite build-ups were luted to prepared dentin surfaces using two self-adhesive resin cements (RelyX Unicem and BisCem) and an ElectroBond device under 0, 20, or 40 μA electrical current. All specimens were submitted to microtensile bond strength test and to interfacial SEM analysis.Results: The electric current-assisted application induced no change (P> 0.05) on the overall bond strength, although RelyX Unicem showed significantly higher bond strength (P< 0.05) than BisCem. Similarly, no differences were observed in terms of interfacial integrity when using the electrical current applicator. {Am J Dent 2014;27:233-236).