纳米硅涂层对玻璃渗透氧化铝陶瓷抗破裂强度的影响  

Effects of nano-silica coating on fracture strength of glass infiltrated alumina ceramic

作　　者：朱晔[1] 谢海峰[2] 章非敏[2] 

机构地区：[1]苏州卫生职业技术学院口腔修复学教研室,苏州215002 [2]南京医科大学口腔医学研究所,南京210029

出　　处：《国际口腔医学杂志》2011年第3期257-260,267,共5页International Journal of Stomatology

基　　金：江苏省科教兴卫工程重点人才基金资助项目(RC200-7099)

摘　　要：目的研究溶胶-凝胶法制备纳米硅涂层对玻璃渗透氧化铝陶瓷粘接后抗破裂强度的影响。方法将In-Ceram氧化铝瓷片分为A、B、C、D、E组。各组试件均以树脂黏结剂粘于体外牙的牙本质,测试瓷片的抗破裂强度,制作相同试件并行电镜和双能X线吸收光谱分析。结果 5组间差异有统计学意义(P<0.05),C、D、E组均高于A、B组,A、B组之间以及C、D、E组之间差异无统计学意义。A、B组界面有微间隙,而C、D、E组界面结合紧密。结论粘接面喷砂后采用溶胶-凝胶法制备纳米硅涂层结合使用硅烷偶联剂可有效提高In-Ceram氧化铝陶瓷的抗破裂强度,3个试验质量分数组间差异无统计学意义。Objective The aim of this study was to evaluate the effects of nano-silica coating prepared by different concentration silica sol on fracture strength of glass infiltrated alumina ceramic after bonding.Methods Five In-Ceram alumina ceramic groups were fabricated to receive different surface treatments as group A,B,C, D,E.Each ceramic disc was bonded to dentin with dual-cured resin cement,and then fracture strength of these samples was tested.After one sample of each group as before,scanning electron microscopy and energy dispersive spectrometer was used to analyze the interface.Results There existed differences among the five groups（P0.05）,group C,D,E were higher than group A and B.There was not only no difference between group A and B,but also among group C,D,E.Small crack was detected in the interface of group A and B,but was not existed in group C,D,E.Conclusion A higher fracture strength could be acquired through preparing silica coating with sol-gol process on sandblasted In-Ceram ceramic surface followed by application of silane.But no difference is existed among the groups prepared by different concentration silica sol.

关 键 词：氧化铝陶瓷 溶胶-凝胶法 纳米硅涂层 抗破裂强度 

分 类 号：R783.1[医药卫生—口腔医学]