Abstract
To evaluate the bonding of composite to glass ionomer cement (GIC) using two different bonding systems. The occlusal surface of 30 teeth was flattened and they were divided into three groups. In Group A, composite (Filtek" Z350 XT, 3M ESPE, USA) was bonded to GIC (Fuji II, GC Corporation, Japan) after initial setting of the GIC being employed as a total-etch adhesive(AdperSinglebond 2, 3M ESPE, USA). In Group B and C, self-etch primer(Adper" Easy One, 3M ESPE, USA) was employed to bond composite to GIC before and after initial setting of GIC respectively. Shear bond strength and nature of fracture of specimens was determined. One-way analysis of variance (ANOVA) was used. Group B showed higher bond strength than Group A & Group C (p<0.01). Group C showed the least bond strength. Bond strength of composite to GIC was significantly higher for self-etch primer group employed on unset GIC.
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