Bond Strengths of Alumina-glass and Zirconia-glass Composites to Opaque-Dentine Porcelain
This study was conducted to evaluate shear bond strength between self-made alumina glass composites (AGC),zirconia glass composites (ZGC) and Vita alpha opaque-dentine porcelain,and also evaluate the effects of different surface treating methods on the bond strength.The AGC and ZGC specimens were treated differently and then bonded with Vita alpha opaque-dentine porcelain.The bond strength was measured by shear test and the surface treating methods included no-treatment,sandblasting and etching.The results showed that the values of bond strength for AGC groups were 30.1,41.1 and 41.9 MPa respectively,and the bond strength of both sandblasting group and etching group were significantly higher than that of the untreated group; the bond strength of ZGC groups were 60.2,63.6 and 35.5MPa respectively,and the value of sandblasting group was significantly higher while etching group was lower than that of untreated group.These results indicated that Vita alpha opaque-dentine porcelain can be well sintered to self-made AGC and ZGC.Sandblasting can greatly improve the bond strength for both AGC and ZGC,while the etching treating method had different effect on their bond strengths.
AGC ZGC Opaque-dentine Porcelain Shear bond strength
Zhang Shaofeng Gao Jing Tian Jiemo Jia Jun Li Jiang
Department of Prosthodontics,School of Stomatology,Fourth Military Medical University,Xian 710032,C National Key Laboratory,New Ceramics & Fine Processing,Tsinghua University,Beijing 100854,China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
1258-1260
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）