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目的:观察比较贵金属烤瓷牙与镍铬合金烤瓷牙的临床修复效果。方法:2004年间,为48例患者制作贵金属烤瓷牙168颗,为另外48例患者制作镍铬合金烤瓷牙179颗。在修复体粘结后即刻以及完成后6个月、1a、2a、3a时复诊,检查修复体的完整性、固位、颜色、颈缘以及牙龈情况。采用SPSS12.0软件包对数据进行秩和检验。结果:修复后即刻检查,贵金属修复组与镍铬合金修复组临床效果良好,而修复后6个月、1a、2a、3a各时间点,2组修复体临床效果总体上比较,贵金属组显著优于镍铬合金组,差异有统计学意义,P<0.05。结论:贵金属烤瓷冠是性能优良的长久性修复体,尤其在颜色方面优于镍铬合金烤瓷冠。
Objective: To observe and compare the clinical effect of porcelain teeth with nickel-chromium alloy porcelain teeth. METHODS: In 2004, 168 porcelain teeth of precious metal were produced for 48 patients and 179 Ni-Cr alloy porcelain teeth for another 48 patients. Immediately after the prosthesis was bonded and 6 months after the completion of the procedure, follow-up was performed on days 1a, 2a and 3a to check the integrity, retention, color, cervical margin and gums of the prosthesis. SPSS12.0 software package for data rank sum test. Results: Immediately after the repair, the clinical effect of the repair group and the nickel-chromium alloy repair group was good. After 6 months, the clinical effects of the two restoration groups at each time point of 1a, 2a and 3a were significantly better In the nickel-chromium alloy group, the difference was statistically significant, P <0.05. Conclusion: The porcelain fused ceramic crown is a permanent prosthesis with good performance, especially superior to the nickel-chromium alloy porcelain crown in terms of color.