中国实用口腔科杂志

中国实用口腔科杂志

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T4K矫治器治疗儿童安氏Ⅱ1错牙合应用基础研究

张艺，严宁   

  1. 深圳市第五人民医院口腔中心，广东  深圳  518000
  • 出版日期:2017-06-15 发布日期:2017-07-11
  • 基金资助:

    2014年深圳市科技创新委员会科技计划项目（JCYJ20140414165143054）

  • Online:2017-06-15 Published:2017-07-11

摘要：

目的    研究T4K矫治器对生长发育期安氏Ⅱ1错牙合儿童颅颌面功能及结构的影响，为临床应用提供理论及实践支持。方法    按照纳入标准选择2014年6月至2015年6月到深圳市罗湖区人民医院口腔医学中心就诊的20例安氏Ⅱ1错牙合儿童患者作为试验组，另选择同期到本院门诊就诊咨询，符合纳入标准但拒绝治疗的20例安氏Ⅱ1错牙合儿童患者作为对照组。试验组患者采用T4K矫治器治疗，对照组患者未做任何治疗仅观察。在同等治疗或观察期后比较两组患者颅颌面硬组织的变化。结果    试验组患者经T4K矫治器治疗后，SNB（蝶鞍点-鼻根点-下牙槽座点角）、L1-MP（下中切牙与下颌平面相交之后上角）、S-Go（后面高）、N-Me（前面高）比对照组患者有显著增大；而ANB（上牙槽座点-鼻根点-下牙槽座点角）、U1-SN（上中切牙长轴与SN平面相交的下内角）、overbite（覆牙合）、overjet（覆盖）比对照组患者有显著减小，差异有统计学意义（P < 0.05）。结论    T4K矫治器用于治疗儿童安氏Ⅱ1错牙合患者可获得良好的侧貌，但有一部分矫治效果是来自于患者颅颌面的自然生长。所以对儿童安氏Ⅱ1错牙合患者进行T4K矫治器早期矫治，可充分利用其生长发育的潜力，达到事半功倍的效果。

关键词: T4K矫治器, 安氏Ⅱ1错牙合, 早期矫治

Abstract:

Objective    To evaluate the effect of the T4K appliance on the maxillofacical function and structure of children with Class Ⅱ division 1 malocclusion during the growth period，and to provide thetheoretical and practical evidence for the clinical application. Methods    Totally 20 children with Class Ⅱ division 1 malocclusion were clinically corrected with T4K appliance；20 cases with the same deformity who refused to receive any treatment were include as controls. The effect of T4K appliance was analyzed through cephalometric radiography. Results    After T4K treatment，the patients′ profiles were much improved. The findings indicated that SNB，L1-MP，S-Go and N-Me were increased significantly compared with those in the control group， but ANB，U1-SN，overjet and overbite were reduced obviously，the differences being statically significant（P＜0.05）. Conclusion    T4K appliance can lead to an improvement of facial profile through treatment for Class Ⅱ division 1 malocclusion；however，part of the effect come from the natural growth and development. Therefore，when T4K applicance is used for early orthodontic freatment for children with ClassⅡ divesion 1 malocclusion，the potential of natural growth and development should be taken into account in order to achieve more effective results while doing less.

Key words: T4K appliance, Class Ⅱ division 1 malocclusion, early orthodontic treatment