不同喷砂粒度对金─瓷结合强度的影响  

The effect of different size of aluminoxide for sand-blasting on bonding strength of porcelain to metal

作　　者：文志红[1] 杜传诗[1] 郑弟泽[1] 巢永烈[1] 

机构地区：[1]成都华西医科大学口腔医学院修复科

出　　处：《中华口腔医学杂志》1994年第4期229-231,T021,共4页Chinese Journal of Stomatology

摘　　要：选用１０μｍ、５０μｍ、１１０μｍ、２００μｍ和２８０μｍ的Ａｌ＿２Ｏ＿３对非贵金属烤瓷Ｎｉ—Ｃｒ合金进行表面喷砂粗化处理，得到五组不同粗糙度的金属表面，以观察金属表面粗糙度对金—瓷结合强度的影响。经ＷＤ—１０Ａ型电子式万能测试机对５０根金瓷棒盘试件结合强度的测试及电子扫描、Ｘ线能谱分析手段的界面观察，表明对非贵金属Ｎｉ—Ｃｒ合金宜采用５０μｍ～２８０μｍ的Ａｌ＿２Ｏ＿３喷砂；在一定范围内，粗糙的金属表面可明显提高金—瓷结合强度。AbstractIn this article , 10um, 50um, 110um, 200um and280um aluminoxide particles were used separativelyfor producing various roughness metal surfaces. Theeffects of different roughness of metal surface onporcelain metal bonding strength were studied byporcelain metal bonding strength measurment,scanning electron microscope (SEM) observation andenergy-dispersive analysis of x-rays (EDAX) . Theresult shows: the size of aluminoxide particles shouldbe over 50 Pm for non-precious Ni-Cr allay Surfaceblasting. In certain range, the roughness of metalsurface can increase bonding strength significantly.

关 键 词：粘结强度 金属烤瓷 牙科工艺学 

分 类 号：R783.2[医药卫生—口腔医学]