摘要
目的：观察VitaOMEGA900低温瓷粉与镀金后Wirobond C钴铬烤瓷合金的金瓷结合强度及结合界面的微观形貌。方法：制作低温瓷粉与钻铬合金、镀金后钻铬合金试件各8个（A、B组）进行三点弯曲测试，再制作镀金组试件2个，随机抽取1个；在测试后的B组试件中随机抽取1个，包埋打磨后，分别用扫描电镜观察界面。采用SPSSl6．0软件包对数据进行统计学分析。结果：钴铬合金组与镀金组的金瓷结合强度分别为（29．92±4．28）、（28．20±5．21）MPa（P〉0．05），均显著大于IS09693要求的25MPa。隙：测试后试件瓷断裂处仍有大量金附着在钴铬合金表面。钴铬烤瓷合金匹配使用。
PURPOSE： To evaluate the bond strength of Vita OMEGA 900 low fusing porcelain fused with the goldplated Wirobond~ cobalt-chrome metalt ceramic alloy. METHODS： Low fusing porcelain was fused with the cobalt-chromium alloy strips（group A） and the goldplated cobalt-chromium alloy strips（group B） respectively according to ISO9693 （A：8,B： 10）. 8 specimens of each group were submitted to three point bending test. Two more test pieces fused with gold plated cobalt-chromium alloys were made （group B＇）. One test piece of both group B and group B＇ were observed under scanning electron microscope （SEM） randomly. The data was analyzed with SPSS 16.0 software package. RESULTS： The bond strength （MPa） of group A and group B was 29.92~4.28 and 28.20~5.21, respectively （P〉0.05）, both higher than 25 MPa required by ISO9693. SEM showed that Vita OMEGA 900 low fusing porcelain and the goldplated Wirobond ~ cobalt-chrome metalt ceramic alloy combined together closely without cracks. Much gold was fused to the cobalt-chrome alloy surface of breaking porcelain specimen after testing. CONCLUSIONS： Vita OMEGA 900 low fusing porcelain can match with the goldplated Wirobond cobalt-chrome metalt ceramic alloy. Supported by Foundation of Education Department of Jiangxi Province （GJJ10367）.
出处
《上海口腔医学》
CAS
CSCD
北大核心
2014年第1期35-38,共4页
Shanghai Journal of Stomatology
基金
江西省教育厅基金(GJJ10367)
关键词
镀金
钴铬合金
低温瓷粉
Goldplated
Cobalt-chromium
Low fusing porcelain
