全瓷冠美容修复在成人前牙修复中的应用

摘要

Objective To explore the effect of all-ceramic crowns for cosmetic restoration of adult anterior teeth malalignment Methods Twenty-eight patients with anterior teeth malalignment from October 2005 to October 2010 in the Department of Stomatology were selected and divided into two groups.The observation group (14 cases)applied all-ceramic crowns for cosmetic restoration,while the control group (14 cases)used nickel-chromium alloy full porcelain.The patients were reexamined one year after treatment,and the two groups were compared in gum color,gingival index,the edge of the suitability.Results One year after treatment,the gingival darkening teeth ofthe control group was 61.3％,and the observation group had no gum color change occurs.The gum color changes of the two groups had statistically significant difference (P＜0.01).Gingivalindex of the control group over 1 was 28.1％,and the observation group was 3.0％.The control group was significantly higher than the observation group (P＜0.01).The proportion of possession of class A of the suitability of the edge of the set of teeth controls was 68.8％,and the proportion of the observation group was 90.9％.The difference between the two groups was statistically significant (P＜0.05).Conclusion Using all-ceramic crowns for cosmetic restoration of anterior teeth malalignment,the tooth shape and color and marginal fitting are all in good condition,and the effect is significantly better than the nickel-chromium alloy full porcelain,which is worth to be widely used in clinical practice.%目的 探讨全瓷冠美容修复在成人前牙修复中的应用效果.方法 选择2005年10月至2010年10月在我科室就诊的28例前牙需要修复的患者,观察组14例患者采用全瓷冠美容修复,对照组14例患者采用镍铬合金烤瓷修复,1年后进行复查,比较两组患者牙龈色泽、牙龈指数、边缘适合性等情况.结果 1年后复查发现,对照组镍铬合金烤瓷牙有61.3％的牙龈颜色变深,观察组全瓷冠美容修复牙无一发生牙龈颜色改变,两组牙龈颜色变化差异有统计学意义(P＜0.01)；对照组牙龈指数在1级以上者为29.0％,观察组牙龈指数在1级以上者为3.0％,对照组明显高于观察组(P＜0.01)；对照组牙边缘适合性A级为67.7％,观察组A级为90.9％,两组差异具有统计学意义(P＜0.05).结论 采用全瓷冠美容修复前牙,牙体形态和色泽、边缘适合性等情况良好,并且其效果明显优于镍铬合金全烤瓷修复,值得在临床推广应用.