[金合金与镍铬合金烤瓷熔附金属冠修复效果的临床评价]
[Clinical evaluation of the effect of gold alloy and Ni-Cr alloy porcelain fused metal crown restorations].
作者信息
Sun Wei-ge, Liu Xiang-hui, Zhang Ling, Zhang Chun, Xie Ming-yi, Zhou Wen-juan
机构信息
Department of Stomatology, the 81th Hospital of PLA, Nanjing 210002, China.
出版信息
Shanghai Kou Qiang Yi Xue. 2009 Feb;18(1):40-3.
PURPOSE
To observe the clinical effect of gold alloy porcelain fused metal (PFM) crown restoration and Ni-Cr alloy PFM crown restoration.
METHODS
A total of 168 teeth from 48 patients were restored with gold alloy PFM crown. The other 48 patients, with a total of 179 teeth were restored with Ni-Cr alloy PFM crown. They were examined in integrality, retention, shade, cervical margin, and gingival health immediately, 6 months, one year, two years ,and three years after restoration. The date was analyzed by rank sum test using SPSS12.0 software package.
RESULTS
The clinical effect of Ni-Cr alloy PFM crown was as good as gold alloy PFM crown when checked up after cementation at once. However, when they were examined 6 months, one year, two years ,and three years after restoration, the clinical effect of gold alloy PFM crown group was significantly better than that of Ni-Cr alloy PFM crown, P<0.05.
CONCLUSION
The gold alloy PFM crown has better properties than Ni-Cr alloy PFM crown as a kind of long-term restoration, especially on the aspect of shade.
目的
观察金合金烤瓷熔附金属（PFM）冠修复与镍铬合金PFM冠修复的临床效果。
方法
48例患者共168颗牙齿采用金合金PFM冠修复。另外48例患者共179颗牙齿采用镍铬合金PFM冠修复。分别在修复后即刻、6个月、1年、2年及3年对修复体的完整性、固位力、色泽、颈缘及牙龈健康状况进行检查。采用SPSS12.0软件包进行秩和检验分析数据。
结果
镍铬合金PFM冠修复后即刻检查时临床效果与金合金PFM冠相当。然而，在修复后6个月、1年、2年及3年检查时，金合金PFM冠组的临床效果明显优于镍铬合金PFM冠，P<0.05。
结论
作为一种长期修复体，金合金PFM冠比镍铬合金PFM冠具有更好的性能，尤其是在色泽方面。
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