摘要
目的:探讨适合牙科氧化锆陶瓷的黏结材料。方法:将烧结后的氧化锆陶瓷片分为4组,每组16片,分别采用RelyXTM ARC、PanaviaTM F、RelyXTM Luting、Fuji plus4种黏结材料与喷砂后的氧化锆陶瓷片黏结,水浴24h和水浴30d后,测试其黏结剪切强度,数据用SAS6.12软件进行统计学分析,黏结断面用扫描电镜观察。结果:PanaviaTMF树脂黏结材料黏结强度最好,分别为(34.7±3.44)MPa(水浴24h)、(31.5±3.44)MPa(水浴30d),与其他组黏结强度差别有统计学意义(P<0.01)。RelyXTM Luting,Fuji plus2种树脂改良型玻璃离子可以获得较好的初期(水浴24h)黏结强度,分别为(15.5±2.71)MPa和(16.0±1.77)MPa,但水浴30d后明显下降至(6.80±1.24)MPa和(3.38±2.32)MPa,P<0.05。结论:含有MDP磷酸单体的树脂黏结材料可以使牙科氧化锆陶瓷获得最好的黏结效果,使用树脂改良型玻璃离子可以产生较好的初期黏结强度,但黏结效果不能持久。
PURPOSE： To study the bonding strength of zirconia ceramics with 4 kinds of luting cement materials. MEHTODS： Blocks of sintered zirconia ceramics were cut and randomly divided into 4 groups with 16 slices in each group. They were treated with sandblasting and bonded with 4 kinds of luting cements respectively. After preserved in 37℃ distilled-water for 24 hours and 30 days, the shear bonding strength of these specimens was tested and the data were analyzed by SAS6.12 software package and bond section were observed by scanning electron microscope. RESULTS： Two-way ANOVA revealed that the group of Panavia^TMF could attain the highest shear bonding strength： （34.7±3.44）MPa （after 24 hours）, （31.5±3.44） MPa（after lmonth）, which was significantly different from other treatment methods （P〈0.01）. The initial shear bonding strength of the groups of resin-reinforced glass ionomer was （15.5±2.71 ）MPa, （16.0± 1.77）MPa （after 24 hours） but dropped markedly to （6.80±1.24）MPa, （3.38±2.32）MPa after 30 days（P〈0.05）. CONCLUSIONS： Resin luting cement containing phosphate monomer （MDP） can provide zirconia ceramics a strong and long-lasting bonding. Resin-reinforced glass ionomer can get good bonding strength too, but can＇t last long.
出处
《上海口腔医学》
CAS
CSCD
2007年第1期73-76,共4页
Shanghai Journal of Stomatology
关键词
树脂黏结剂
氧化锆陶瓷
黏结剪切强度
Resin luting cement
Zirconia ceramics
Shear bond strength
