A comparison of preliminary bond strength between oxide ceramics and three resin luting cements / 实用口腔医学杂志

ABSTRACT

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, RelyX~(TM) Unicem showed the lowest bond strength(13.29±3.05) MPa,but there was no difference between Superbond C&B and Panavia~(TM) F. Conclusion: Both Superbond C&B and Panavia~(TM) F have reliable shear bond strength with oxide ceramics, while RelyX~(TM) Unicem is not so perfect.