Clinical evaluation of direct resin composite restorations of endodontically treated molars using dual cured self-adhesive system with bulk fill composite versus incremental packing technique

Abstract

Restoration after endodontic treatment is as important as root canal therapy for clinical success. Evolution of adhesive dentistry strongly aided in the conservation of tooth structure and reinforcement of the restored teeth. Self-etch adhesives has evolved aiming to reduce the technique sensitivity and simplifying the steps needed for bonding (one or two steps). Dual cured self-etch adhesives were also introduced to be more chemically compatible with the resin composite restorations. Bulk-fill resin composites has also achieved great popularity due to the ease of application and being more time saving. These materials made the direct restoration of endodontically treated teeth more conservative, time saving and reliable. This research was performed to assess the clinical success of the restorations of the endodontically treated molars with remaining three walls restored using self-etch adhesives and bulk fill resin composite in comparison to conventional nanohybrid resin composite at a time intervals of 1week (baseline) , 3 ,6 and 12 months. In a randomized clinical trial, 40 patients with endodontically treated molars with remaining three walls received a restorative intervention with either (Xtra-Fil) bulk fill resin composite or (Grandio) nano hybrid resin composite applied in incremental technique.