汉族青年恒牙牙冠的测量研究  

Measurement of permanent crown diameter of Han's youth

作　　者：彭惠[1] 卢海燕[2] 王昕[3] 

机构地区：[1]黑龙江省大庆市第一医院口腔正畸科,163001 [2]河北医科大学口腔医院正畸科 [3]四川大学华西口腔医学院

出　　处：《现代口腔医学杂志》2003年第1期57-59,共3页Journal of Modern Stomatology

摘　　要：目的　为口腔正畸临床中错牙合畸形的诊断提供参考。方法　随机选取 1 4 0名 1 8岁～ 2 5岁全牙列牙冠完全萌出 (包括第三磨牙 )的汉族青年 ,其中男 60名 ,女 80名。在牙牙合模型上测量所有牙冠的近远中径和后牙颊舌径。利用SAS计算机软件 ,对测量值进行统计分析。结果　牙冠大小存在显著性性别差异、地区种族差异 ,而左右侧微小差异无统计学上显著性意义。结论　口腔正畸临床中牙冠的预测方程应使用本民族的方程 。Objective To provide the reference for diagnoses in othodontics.Methods This study randomly collected 140 students(60 male.80 female) of Han nationality at eighteen to twenty-five yeas of age with third molars completely erupted.Mesiodistal and buccolingual crown diameters were measured on models and were statistically analyzed using the SAS computer package.Results Crown diameters had significant difference in sex,region and race. There was no statistical difference in bilateral asymmetry.Conclusion The natives predicting formulae of crown diameters should not be adopted to other races in clinical othodontics.

关 键 词：牙冠 近远中径 颊舌径 

分 类 号：R783.5[医药卫生—口腔医学]