制作方法对钴铬合金金瓷结合性能的影响
目的比较铸造钻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SPSS13．0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（P〉0．05）。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。...
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| Published in | 华西口腔医学杂志 Vol. 32; no. 2; pp. 115 - 118 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国医科大学口腔医学院修复科，辽宁省口腔医学研究所，沈阳 110002%中国科学院金属研究所分析测试部,沈阳,110016%中国医科大学口腔医学院材料教研室，辽宁省口腔医学研究所，沈阳 110002
2014
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-1182 |
| DOI | 10.7518/hxkq.2014.02.003 |
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| Summary: | 目的比较铸造钻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SPSS13．0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（P〉0．05）。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。 |
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| Bibliography: | 51-1169/R Objective To compare the shear bond strength（SBS） of cast Co-Cr alloys and selective laser melting（SLM） Co-Cr alloys with those of dental porcelain. Methods A dental porcelain （Vita） was applied on cast and SLM Co-Cr alloy specimens（n=10）. SBS test was conducted, and fracture mode analysis was determined. Student＇s t-test by SPSS 13.0 soft- ware was employed to analyze the data. Results The SLM Co-Cr alloy specimens had lower SBS values than the cast Co- Cr alloy specimens （P〉0.05）. The metal-porcelain bond strength value of the cast group was （33.11±4.98） MPa, and that of the SLM group was （30.94±5.98） MPa. The specimens in both test groups exhibited mixed failure. Conclusion The metal- porcelain system processed by SLM exhibit a bond strength that is similar to that of the cast group. This system also display a high precision. Co-Cr alloy; shear bond strength; selective laser melting; casting Liu Jie, Chi Shuai, Xu Jin, Wang Yanyan, Zhan Desong. （1. Dept. of Prosthodontics, School of Stomatology, Chi |
| ISSN: | 1000-1182 |
| DOI: | 10.7518/hxkq.2014.02.003 |