| 引用本文： |
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王玉华,刘月华,李强,兰庭超.安氏Ⅱ类1分类错[牙合]畸形拔牙矫治后软硬组织变化及相关性[J].同济大学学报（医学版）,2006,(1):53-55. [点击复制]
- .The Changes in Dentofacial Structures and the Correlation between Soft and Hard Tissue Changes after Orthodontic Treatment with Four Premolars Extraction[J].同济大学学报（医学版）,2006,(1):53-55. [点击复制]
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| 摘要: |
| 目的分析安氏Ⅱ类1分类错牙合畸形患者经拔牙矫治后牙颌面软硬组织形态学变化及相互关系。方法随机选择30例经拔除4颗第一双尖牙并以直丝弓技术矫治完成的安氏Ⅱ类1分类错牙合畸形患者,男13例,女17例,平均年龄18.4±1.0岁(16~24岁)。应用X线头影测量技术对患者矫治前后牙颌面软硬组织形态进行测量分析,并建立以上下唇突距变化值为因变量、相关硬组织变化值为自变量的多元逐步回归方程。结果矫治前后的显著性改变主要发生在牙齿和面部软组织,颌骨变化不具显著性统计学意义。多因素分析结果显示,上下唇突距的变化与上下切牙突距,上下切牙倾斜度及面高比的变化有显著相关性,其中上下切牙突距变化对上下唇突距的变化最具影响。结论拔牙矫治后安氏Ⅱ类1分类错牙合畸形患者牙齿和面部软组织变化明显,软组织形态与切牙位置改变密切相关。 |
| 关键词: 正畸拔牙,牙颌面结构,X线头影测量,多元逐步回归 |
| DOI： |
| 修订日期：2005-10-17 |
| 基金项目: |
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| The Changes in Dentofacial Structures and the Correlation between Soft and Hard Tissue Changes after Orthodontic Treatment with Four Premolars Extraction |
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| Abstract: |
| Objective To investigate the change in dentofacial structures and the correlation between the soft and hard tissue changes after four premolars extraction and straight wire appliance treatment.Methods The soft and hard tissue changes were measured for 30 |
| Key words: orthodontic extraction,dentofacial structure,cephalometry,multiple regression |
