Microtensile bond strength of self-adhesive luting cements to ceramics

The purpose of this paper was to compare the bond strengths of the self-adhesive luting cements between ceramics and resin cores and examine their relation to the cement thickness. Three self-adhesive luting cements (Smartcem, Maxcem, and G-CEM) and a resin cement (Panavia F 2.0) for control were used in the paper. The thickness of the cements was controlled in approximately 25, 50, 100, or μ200m. Each 10 specimens were made according to the manufacturers instructions and stored in water at 37C. After 24 hours, microtensile bond strength (μTBS) was measured. There were significant differences in cements. Three self-adhesive cements showed significantly lower TBSs than control that required both etching and priming before cementation (Tukey, P < 0.05). The cement thickness of 50 or 100m tended to induce the highest TBSs for each self-adhesive luting cements though no difference was found.