第二磨牙和第三磨牙近远中径的预测  

Mesiodistal Prediction of Second and Third Molar

作　　者：彭惠[1] 王昕[1] 

机构地区：[1]华西医科大学口腔医学院正畸科

出　　处：《口腔正畸学》2001年第4期168-170,共3页Chinese Journal of Orthodontics

摘　　要：目的　为口腔正畸诊断中全牙列间隙分析提供理论依据。方法　随机选取 14 0名 18岁至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 6 0人 ,女 80人。在牙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　建立了汉族人第二磨牙和第三磨牙的多元回归方程。结论　第二磨牙或第三磨牙未萌时 ,应采用本研究所得方程预测其近远中径。Objective We provided the reference for diagnoses in Othodontics of total dental space analysis. Method This study randomly collected 140 Chinese students(60 male, 80 female) who were from eithteen to twenty five years old with third molars completely erupted. Mesiodistal and buccolingual crown diameters measured on models were statistically analyzed using the SAS software package. Results The equations by stepwise multiple regression analysis predicting second and third molar width were established respectively. Conclusion When second or third molar not erupting, their mesiodistal with could be predicted by using these equations.

关 键 词：第二磨牙 第三磨牙 近远中径 口腔正畸 全牙列间隙分析 牙HE模型 

分 类 号：R783.5[医药卫生—口腔医学]