中国实用口腔科杂志

中国实用口腔科杂志

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前方牵引器治疗对上气道影响30例观察

李 宁，刘 兵，隋健夫   

  1. 解放军202医院口腔科，辽宁 沈阳
  • 收稿日期:2009-04-07 修回日期:2009-09-05 出版日期:2009-10-15 发布日期:2009-10-15

  • Received:2009-04-07 Revised:2009-09-05 Online:2009-10-15 Published:2009-10-15

摘要：

摘要：目的 探讨上颌前牵引治疗对气道的影响。方法 对2002—2008年在解放军202医院口腔科就诊的30例骨性Ⅲ类错牙合患者行前方牵引器治疗，通过头影测量指标比较治疗前后气道的变化。结果 上颌骨A点前移，蝶鞍点-鼻根点-上齿槽座点角（SNA角）增加，上颌切牙唇侧倾斜，下颌切牙舌侧倾斜，鼻咽腔气道两个测量点分别平均增加（2.71±0.05） mm 和（3.03±0.33） mm，与术前比较差异具有统计学意义（P<0.05）。结论 上颌前牵引治疗对鼻腔气道有影响，但是对口咽腔气道没有影响。

关键词: 上颌前牵引, 骨性Ⅲ类错牙合, 气道测量

Abstract:

Abstract：Objective To explore the effects of maxillary protraction therapy on airway dimensions. Methods Thirty cases of Class III malocclusion were selected from patients treated in Department of Stomatology， Hospital of the People’s Liberation Army 202 from 2002 to 2008. All cases were treated by maxillary protraction therapy， and lateral cephalometric radiographs were used to compare the changes of airway. Results Point A of maxilla moved forward， SNA angle increased， the upper incisor proclined，and lower incisors retroclined. Two measuring points of nasopharyngeal airway increased （2.71±0.05）mm and （3.03 ±0.33）mm respectively. And these parameters showed significant statistical difference compared with preopreation. Conclusion Maxillary protraction therapy has effect on nasal airway， but has no effect on oropharyngeal airway.

Key words: maxillary protraction, skeletal Class Ⅲ malocclusion, sagittal airway dimension