正畸患者先天性牙缺失与错畸形矢状骨型的关系  

The correlation between the hypodontia in orthodontic patients and skeletal class

作　　者：徐宏[1] 赵文科[2] 秦玉福 刘新强[1] 

机构地区：[1]青岛大学医学院附属医院口腔正畸科,266003 [2]青岛大学医学院 [3]山东诸城市立医院口腔科

出　　处：《实用口腔医学杂志》2007年第1期60-62,共3页Journal of Practical Stomatology

摘　　要：目的:统计正畸患者先天性牙缺失情况,探讨先天性牙齿缺失与错畸形骨型间的关系。方法:通过全景曲面断层片判定先天性牙齿缺失情况,通过头颅定位侧位片确定患者的矢状骨型,对先天性牙齿缺失部位与性别、骨型间的关系进行统计学分析。结果:上颌前牙段与上颌后牙段及下颌前牙段与上颌后牙段间缺牙数量比较有统计学意义(均为P<0.05),其他2组间缺牙数量均无统计学意义;女性先天性牙齿缺失数目高于男性,二者的差别具有统计学意义(P<0.05);Ⅱ类骨型错与下颌前牙段牙齿缺失相关,Ⅲ类骨型错与上颌前牙段牙齿缺失相关。结论:牙齿缺失部位与不同的错畸形骨型相关。Objective： To examine the hypodontia in orthodontic patients and to investigate the correlation between the hypodontia and skeletal class. Methods ：The hypodontia were determined by panoramic radiographs, and skeletal class were evaluated by lateral cephalograms. The correlation between the hypodontia and skeletal class were analyzed by statistic methods. Results：The number of hypodontia in anterior upper arch was higher than those in lateral upper arch and the number of hypodontia in anterior lower arch was higher than those in lateral upper arch （ P 〈 0.05 ）. The number of female who were hypodontia was higher than that of male（ P 〈 0.05 ）. There was a significantly close relationship between skeletal class Ⅱ and hypedontia in lower arch, and there was a significantly close relationship between skeletal class Ⅲ and hypodontia in anterior upper arch either. Concluslon：The different part of hypodontia cause different skeletal class.

关 键 词：牙发育不全 正畸 错[牙合]畸形 骨型 

分 类 号：R783.5[医药卫生—口腔医学]