A comparison of preliminary bond strength between oxide ceramics and three resin luting cements

Objective:To compare the shear bond strength between oxide ceramics and three resin cements.Methods:Blocks of zirconium dioxide and aluminium sesquioxide ceramics were treated with sandblasting and bonded with three luting cements respectively.After preserved in 37 ℃ water for 24 h,the shear bond strengths of these specimens were tested and the data were analyzed by SAS9.12 software package.Results:There were significant differences among alumina ceramics which manifested that shear bond strength of Superbond C﹠B was the highest(37.60±2.06)MPa.However,in zirconium dioxide groups,RelyXTM Unicem showed the lowest bond strength(13.29±3.05)MPa,but there was no difference between Superbond C﹠B and PanaviaTM F.Conclusion:Both Superbond C﹠B and PanaviaTM F have reliable shear bond strength with oxide ceramics,while RelyXTM Unicem is not so perfect.