Effect of conditioning and 3-year aging on the bond strength and interfacial morphology of glass-ionomer cement bonded to dentin

Glass-ionomer cement (GIC) is bioactive and independent. Bioactivity, which a big trend in restorative dentistry. When they actively stimulate with microbiological species besides their primary function of restoring tooth structure then materials should called “bioactive” materials. The purpose this study was to determine the bond stability change interfacial ultra-structure conventional glass-ionomer bonded dentin, without pre-treatment using polyalkenoic acid conditioner. occlusal dentin surfaces six teeth were ground flat. either or conditioning. sectioned into 1-mm2 stick-shaped specimens. specimens obtained randomly assigned two groups different periods storage water: 1-week 3-year. micro-tensile strength (μTBS) determined for each time. Additional prepared analysis by Scanning Electron Microscopy (SEM); produced prior conditioning same way as μTBS test. There no significant difference conditioned non-conditioned (p > 0.05). failures appeared be mixed nature, although aging caused more areas cohesive than adhesive failure both groups. Aging did not reduce use Remineralized layer observed unconditioned 3-years