严重深覆型AngleⅡ~2错牙弓宽度的测量分析  

A study on dental arch width in class II division 2 deep-overbite malocclusions

作　　者：毕春英[1] 陈国新[1] 贺红[1] 赵英利[1] 东耀峻[1] 

机构地区：[1]武汉大学口腔医学院,湖北武汉430079

出　　处：《临床口腔医学杂志》2004年第1期51-52,共2页Journal of Clinical Stomatology

摘　　要：目的 :分析严重深覆牙合型AngleⅡ2 错牙合的牙弓形态特点。方法 :严重深覆牙合型AngleⅡ2 错牙合 3 2副模型为实验组 ,对照组 64副模型中AngleI错 牙合和AngleⅡ1错牙合各 3 2副模型 ,分别测量上颌尖牙之间距离、上颌第一磨牙之间距离、下颌尖牙之间距离和下颌第一磨牙之间距离。结果 :采用两样本t检验 ,四项指标中只有实验组的下颌前段牙弓宽度明显窄于对照组 (P <0 .0 0 1)。结论 :除了下颌前部牙弓宽度变窄外 ,严重深覆牙合型AngleⅡ2 错牙合牙弓形态基本正常。Objective:To analyze the dental arch form in the ClassII/2 deep-overbite occlusions.Method:In this study,pretreatment dental casts of 32 orthodontic patients with AngleⅡ 2 deep-overbite occlusions were collected.Maxillary and mandibular dental arch widths were measured at the canines and the first molars.The data were compared with a control-reference sample of 64 subjects matched for age and gender.Result:A statistically significant difference in the mean mandibular intercanine width was found between the two groups.Conclusion: The dental arch form in the AngleⅡ 2 deep-overbite patients might be characterized as normal except in the mandibular intercanine width dimension,which is reduced.

关 键 词：深覆He AngleⅡ^2 错HE 牙弓宽度 

分 类 号：R783.5[医药卫生—口腔医学]