文章摘要
王 洁,王瑞霞,光寒冰,邱 憬,王国平.热压铸法与涂塑法金瓷结合强度对比性实验研究[J].南京医科大学学报,2013,(12):1795~1799
热压铸法与涂塑法金瓷结合强度对比性实验研究
A comparison of the Shear bond strengths of pressed and layered veneering ceramics to metal alloy
投稿时间:2013-05-09  
DOI:10.7655/NYDXBNS20131242
中文关键词: 热压铸法  饰面瓷  结合强度
英文关键词: Heat-pressed Technique  veneering porcelain  bond strength
基金项目:江苏高校优势学科建设工程资助项目(2011-137)
作者单位
王 洁 南京医科大学口腔医学研究所,江苏 南京 210029 
王瑞霞 南京医科大学口腔医学研究所,江苏 南京 210029 
光寒冰 南京医科大学口腔医学研究所,江苏 南京 210029 
邱 憬 南京医科大学口腔医学研究所,江苏 南京 210029 
王国平 南京医科大学口腔医学研究所,江苏 南京 210029 
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中文摘要:
      目的:比较烤瓷合金通过热压铸法和涂塑法制备饰面瓷的金瓷结合强度。方法:制作钴铬合金(Co-Cr)?金铂合金(Au-Pt)铸件各12个,将InLinePoM压铸瓷块及VMK95瓷粉分别应用热压铸法和涂塑法制备在铸件表面,热压铸组(PoM)包括(A1组PoM/Co-Cr,A2组PoM/Au-Pt),涂塑组(VMK95)包括(B1组VMK95/Co-Cr,B2组VMK95/Au-Pt),测试各组剪切强度,分析界面断裂模式,以扫描电镜(SEM)观察金瓷结合界面形貌并进行能谱分析(EDS)。结果:PoM组金瓷结合强度高于VMK95组,同种饰面瓷加工方式Au-Pt组金瓷结合强度高于Co-Cr组,扫描电镜观察可见PoM组较VMK95组金瓷结合界面孔隙少,两组断裂方式均以混合破坏为主。结论:热压铸法在烤瓷合金表面制作饰面瓷金-瓷结合力更强。
英文摘要:
      Objective:The purpose of this study was to evaluate the shear bond strengths of heat-pressed and layered ceramics with regard to their corresponding metal alloy. Methods:12 Co-Cr alloy and 12 Au-Pt alloy specimens were cast and divided into 2 groups (n = 6). Metal specimens were veneered with ceramics to produce shear test specimens:experimental groups:PoM (A1:PoM/Co-Cr,A2:PoM/Au-Pt) and two control groups:VMK95 (B1:VMK95/Co-Cr,B2:VMK95/Au-Pt). Shear bond strength testing was conducted in a universal testing machine,and the failure strengths were recorded. SEM was utilized to analyze the metal-porcelain interface. Results:Bond strength of PoM groups was significantly higher than that of VMK95 groups and all the groups displayed mixed failure mode. SEM revealed morphologically that in the PoM groups,the veneer layer contacted more closely and tightly to the alloy,and fewer pores were shown in the interface. Conclusion:Heat- pressed Technique shows greater bond strength between metal and the veneering porcelain.
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