两种不同烤瓷冠修复的疗效比较

目的 比较全瓷冠修复和金瓷冠修复的优缺点,为患者提供更好的修复方式.方法 选择进行烤瓷全冠修复的患者共计修复义齿258颗,分为全瓷冠组98颗和金属烤瓷冠组160颗,进行基牙预备,取模,比色,送制作.结果 经过2年随访观察,258颗冠修复中有15颗出现了不同程度的牙龈边缘着色,均为金瓷冠修复体,10颗患者对修复体颜色不满意.8颗修复体出现崩瓷现象.结论 金瓷冠修复体金属内冠薄,硬度大,比重轻,抗压强度大,在高温下反复烧烤也很少发生挠曲变形,适合于跨度大的长桥体修复.全瓷冠因其无金属结构,具有良好的光传播和光反射功能,可再现自然牙半透明深度和色深度,层次感强,适合前牙修复.

Clinical effects of two kinds of porcelain fused to metal crown

Objective To compare advantages and disadvantages of ceramic crown and pomvlaiu fused to metal（ PFM）, provide better rehabilitation ways for patients. Methods 258 porcelains were ,divided into two groups： eeranfie crown group 98 and metal ceramic emwns group 160 ,for preparation of abutment ,modulus ,colorimetric ,feed production. Results Follow-up observation for 2 years,the 15 crowns of all appeared the glngival edge coloring ＇with different degree, are PFM, 10 patients were not satisfied with the color of restorations. 8 repair：body poreelain. Conclusion Inner emwn rectal of PFM is thin and light,with high hardness and compressive strength. It rarely occur deformation slnee repeated the barbecue at high temperatures, so suitable for large span bridge restoration. Ceramic ＇ crown because of no metal structure, good light transmission and light reflecting function, can reproduce the inaturat teeth translucent depth and color depth, strong sense of hierarchy, suitable for the repair of anterior teeth.