两种方法修复磨牙缺损的临床疗效观察

目的 观察用钴铬合金嵌体和银汞合金修复磨牙缺损的临床疗效.方法 选择磨牙牙体缺损患者100例,随机分为两组,分别使用金属嵌体修复和银汞合金直接充填,在修复后6个月、4年复诊,对患者口内两种充填体进行疗效评价.结果 修复后6个月银汞合金直接充填组成功率为95.8％,钴铬合金嵌体组成功率为98.0％,经卡方检验两者临床疗效差异无统计学意义(P＞0.05).修复后4年银汞合金充填组成功率为60.0％,钴铬合金嵌体组成功率为84.8％,卡方检验显示嵌体组临床疗效明显优于银汞合金组,差异有统计学意义(P＜0.05).结论 嵌体修复磨牙邻(牙合)面洞缺损的方法是有效且可行的,其长期临床疗效优于银汞合金直接充填.

Clinical effect of two treatments in the restoration in defective molars

Objective To observe the clinical effect of restoration with either silver amalgam or co-ch inlay for defective molars. Methods A total of 100 defective molars from 100 patients were chosen and divided into two groups randomly. One group was restored with co-ch inlay (co-ch inlay group), and another group was restored with silver amalgam (silver amalgam group). All the restorations were evaluated in oral cavity after six months and four years. The data were analyzed using SPSS16.0 software with the chi-square test. Results After six months, the success rate of silver amalgam group was 95.8%, and that of the co-ch inlay group was 98.0%, showing no statistically significant difference between the two groups (P>0.05). After four years, the success rate of silver amalgam group was 60.0%, and that of the co-ch inlay group was 84.4.0%, with statistically significant difference between the two groups (P<0.05). Conclusion The defective molars can be well restored with the co-ch inlays. In the long term, the co-ch inlays show significant superiority over silver amalgam.