制作方法对钴铬合金金瓷结合性能的影响

发布时间：2018-03-27 20:43

本文选题：钴铬合金　切入点：剪切力　出处：《华西口腔医学杂志》2014年02期

【摘要】：目的比较铸造钴铬合金与选区激光熔化(SLM)钴铬合金金瓷结合强度的差异。方法用铸造法和SLM技术制作钴铬合金试件各10个,在中间1/3区域熔附瓷粉,采用剪切力试验测试金瓷结合强度并观察断裂类型。采用SPSS 13.0软件中的t检验对结果进行统计学分析。结果铸造组、SLM组剪切力分别为(33.11±4.98)、(30.94±5.98)MPa,二者间差异无统计学意义(P0.05)。样本的断裂类型为复合断裂。结论 SLM钴铬合金修复体精密度较高,其金瓷结合强度与铸造钴铬合金相近。
[Abstract]:Objective to compare the bonding strength between cast cobalt-chromium alloy and selective laser melting (SLM) cobalt-chromium alloy. Methods 10 cobalt-chromium alloy specimens were made by casting method and SLM technique, and the ceramic powder was fused in the middle 1 / 3 region. The shear stress test was used to test the bonding strength of metal-porcelain and the fracture type was observed. The results were statistically analyzed by t test in SPSS 13.0 software. Results the shear stress of casting group was 30.94 卤5.98 MPA, respectively. There was no significant difference between the two groups. The fracture type of the sample is complex fracture. Conclusion the precision of SLM cobalt-chromium alloy prosthesis is high. Its metal-porcelain bonding strength is close to that of cast cobalt chromium alloy.
【作者单位】：中国医科大学口腔医学院修复科;辽宁省口腔医学研究所;中国科学院金属研究所分析测试部;中国医科大学口腔医学院材料教研室;
【分类号】：R783.2

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