摘要
目的研究T4K矫治器对生长发育期安氏Ⅱ~1错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Ⅱ~1错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Ⅱ~1错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)、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Ⅱ~1错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Ⅱ~1错患者进行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。
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＆#39; 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 Class Ⅱ 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.
出处
《中国实用口腔科杂志》
CAS
2017年第6期365-368,共4页
Chinese Journal of Practical Stomatology
基金
2014年深圳市科技创新委员会科技计划项目(JCYJ20140414165143054)
关键词
T4K矫治器
安氏Ⅱ1错
早期矫治
T4K appliance
Class Ⅱ division 1 malocclusion
early orthodontic treatment
