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目的 :报告成都地区上切牙瓷修复的色型分布。方法 :1999 ,1～12月成都华西口腔义齿制作加工中心的全部上切牙瓷修复加工制作卡共计2890人 ,7470单位 ,测算加权平均数的色型分布情况及主要色型分布状况。结果 :A系列为人群上前牙的主要色型 ,占64.07 %,A系列在实际使用中被临床划分为11个色型。B系列占16.36 % ,C系列占10.61 % ,D系列占8.77 %。分类中占前9位的依次是A2 ,A3 ,B2 ,A1 ,C2 ,D3 ,D2 ,A3 :5 ,B3 ,占全部总数的86.1 %。结论 :VITA比色板的临床代表性 ,应作适当增加 ,尤以A系列为主。九分法的比色方法目前仍未被临床采纳 ,适当使用三分法 (切、体、颈 )更易在临床推广 ,建议使用组合式比色板。
OBJECTIVE: To report the color distribution of upper porcelain restoration in Chengdu. Methods: All the upper incisor porcelain prostheses in Chengdu Huaxi Dental Denture Production and Processing Center from 1999 to January were processed in a total of 2890 and 7470 units. The color distribution and the distribution of the main color patterns of weighted average were calculated. Results: A series of the main color of the population on the anterior teeth, accounting for 64.07%, A series in clinical use is clinically divided into 11 color types. B series accounted for 16.36%, C series accounted for 10.61%, D series accounted for 8.77%. The top 9 categories in the classification are A2, A3, B2, A1, C2, D3, D2, A3: 5 and B3, accounting for 86.1% of the total. Conclusion: The clinical representativeness of VITA color plates should be appropriately increased, especially in the A series. Colorimetric method of nine points method is still not clinically adopted, the appropriate use of trisection (cut, body, neck) is more easily in the clinical promotion, it is recommended to use a combination of color plates.