MEAW弓在纠正功能性下颌偏斜中的应用  

The Application of MEAW in the Correction of Functional Mandible Lateral Deviation

作　　者：王明锋 李爽 钱尧娟 秦小语 WANG Ming-feng;LI Shuang;QIAN Yao-juan;QIN Xiao-yu(Department of Orthodontic,Dalian Dental Hospital,Dalian 116021,Liaoning,China)

机构地区：[1]大连市口腔医院正畸科,辽宁大连116021

出　　处：《中国美容医学》2018年第10期86-88,共3页Chinese Journal of Aesthetic Medicine

摘　　要：目的:介绍应用MEAW弓矫治功能性下颌偏斜的方法,并评价其疗效。方法:选择25例功能性下颌偏斜的患者为研究对象,年龄14～45岁。正中位下前牙中线及软组织颏点偏斜均超过2mm,息止位时下前牙中线及软组织颏点均与面中线一致,或偏颌有明显改善。矫治过程中常规排齐整平上下牙弓,必要时对上牙弓狭窄的患者配合扩弓治疗。利用多曲唇弓调整左右平面,压低并唇倾上颌干扰牙,偏斜侧利用后方诱导引导后缩的下颌骨向前。通过模型测量及术前术后CBCT片评价疗效。结果:所有患者偏颌改善明显,正中位下颌前牙中线与面中线一致,软组织颏点与面中线接近一致,双侧磨牙关系达到中性,下颌中切牙中线位置平均改善(2.71±0.63)mm,颏点Me平均改善(1.40±0.59)mm。结论:MEAW弓能够在一定程度上纠正功能性下颌偏斜。Objective To introduce and evaluate the method of multiloop edgewise arch wire （MEAW） used in the correction of functional mandible lateral deviation（MLD）. Methods 25 patients with MLD, aged from 14 to 45 were treated. Lower dental mid-line and soft tissue chin mid-line of theses patients deviated to one side more than 2mm in ICP, and coincided with mid-line or got closer to mid-line of face in CR position. After aligning and leveling the upper and lower dental arch and expanding the upper arch when necessary, MEAW was used to correct the canted occlusal plane, to intrude the interferential teeth, and to guide the mandible forward at the shift side by using retrusive guidance. Model and CBCT were used to evaluate treatment effectiveness. Results MLD in all patients were improved effectively, lower dental mid-line coincided with facial mid-line in ICP and soft tissue point Me became closer to facial mid-line. Class I molar relationships were obtained. Dental mid-line and point Me improved（ 2.71±0.63）mm and （1.40±0.59）mm respectively. Conclusion To some extend, MEAW can be used to correct functional MLD.

关 键 词：功能性偏颌 多曲唇弓 后方牙合诱导 单侧Ⅱ类错牙合 非手术治疗 

分 类 号：R782.2[医药卫生—口腔医学]