Effect of cyclic loading and an intermediate material on microtensile bond strengths of a dual-cure resin cement to dentin resin-coated with all-in-one adhesives

摘要

Background/purpose The purpose of this in?vitro study was to evaluate the effects of mechanical loading and an intermediate material on microtensile bond-strengths (μTBSs) of four all-in-one adhesives and a total-etching adhesive system to dentin. Materials and methods Dentin surfaces of sound human third molars were exposed and treated with Danville Experimental (Danville Materials), G Bond (GC), Clearfil S 3 Bond (Kuraray), AdheSE One (Vivadent), and Prelude total-etch (Danville Materials). Dual-curable resin (Multicore; Vivadent) build-ups were created with and without the use of Prelude Dual/Self Cure Link (Danville Materials). Two subgroups were created (with and without mechanical-loading: 5?×?10 4 [cycles]; 50?N at 0.2?Hz). After storage at 37°C for 1 week, the μTBS test was performed. Data were calculated (MPa) and statistically analyzed (multivariate analysis of variance and Scheffe’s tests). Results Pre-test failure was observed, and no data were obtained from groups in the absence of Prelude Dual/Self Cure Link, except for the Prelude total-etch group. Prelude total-etch provided significantly higher μTBSs to dentin than did the other adhesives (P?