磨牙远移治疗中一种新的模型分析法的建立与应用  

Establishing and application a new model analysis to distal molar movement

作　　者：刘汝平[1] 宋晶[1] 张丽媛[1] 

机构地区：[1]内蒙古医学院附属医院,内蒙古呼和浩特010050

出　　处：《现代中西医结合杂志》2010年第33期4253-4254,4257,共3页Modern Journal of Integrated Traditional Chinese and Western Medicine

基　　金：内蒙古自然科学基金资助项目(200308020631)

摘　　要：目的建立一种新的模型分析方法,研究口外弓结合滑动杆推上颌第一磨牙远移矫治安氏Ⅱ类错畸形磨牙远移的变化量。方法 16例患者进行口外弓结合滑动杆与单纯口外弓推上颌第一磨牙远移的同体两侧对照研究,平均治疗96.37 d,通过模型分析确定磨牙的远移、旋转和颊舌向移动量。结果口外弓结合滑动杆治疗侧磨牙均达安氏Ⅰ类关系,磨牙远移(3.00±1.18)mm、旋转(7.80±4.80)°、颊舌向移动(0.73±0.88)mm;而单纯口外弓治疗侧磨牙远移(0.84±0.68)mm、旋转(2.80±2.16)°、颊舌向移动(0.25±0.54)mm,两种方法比较均有显著性差异(P<0.01或0.05)。结论该模型测量分析法良好地反映了磨牙的远移、旋转和颊舌向移动量,证明口外弓结合滑动杆加速了磨牙远移的速度,同时有部分下颌磨牙的近中移动,加快了纠正磨牙安氏Ⅱ类关系。Objective It is to establish a model analysis for studying the treatment of class Ⅱ malocclusion by face-bow combining with sliding-jig.Methods 16 patients of class Ⅱ malocclusion were treated by face-bow combining with sliding-jig on one side and face-bow only on the other side as the control.After treatment for 96.37 days,the molar movement distally,degree of rotation and change of arch were measured and the dates were documented.Results The first molar moved distally for（3.00±1.18） mm,rotation for（7.80±4.80）°,change of arch for（0.73±0.88） mm on the treated side and（0.84±0.68）mm,（2.80±2.16）°,（0.25±0.54）mm on the control side.There was significant difference between two sides（P0.01 or 0.05）.Conclusion The model reflects distal molar movement,degree of rotation and change of arch satisfactorily.The velocity of molar distal movement by face-bow combining with sliding-jig and the mesial movement of the lower molars is accelerated,and the Angle class Ⅱ malocclusion is corrected more quickly.

关 键 词：模型分析 安氏Ⅱ类错 磨牙远移 

分 类 号：R782.05[医药卫生—口腔医学]