Assessment of Nano-leakage for Three Adhesive Systems: An In Vitro Study

Abstract

Aim: This research evaluates the nanoleakage in Adper single bond 2, Clearfil SE BOND 2, and G-bond plus adhesive systems . Materials and Methods: Forty-five freshly extracted human maxillary premolar were selected for measuring their nanoleakage. The selected teeth were divided into three main groups according to adhesive systems (n=15). Group I: etch and rinse system (Adper single bond 2), group II: self-etch two-step system (Clearfil SE BOND 2), group III: self-etch all in one system (G-bond Plus). Each group was divided into 3 subgroups according to storage time (n=5) (one day, one month, six months. MOD cavity was prepared with 2.5 depth and 2 mm width and restored with restorative materials before nanoleakage at dentin adhesive interface is measured with a scanning electron microscope . Results: The result of this study revealed that Adper single bond 2 is inferior to Gbond plus then Clearfil SE BOND 2 . Conclusions: Clearfil SE BOND 2 seems to be an efficient adhesive. The storage in water for long periods has a highly significant adverse effect on the nanoleakage.