结果：单侧后牙反牙合矫正后，面部不对称有明显改善。
Result:After the correction of unilateral crossbite by maxillary expansion, craniofacial asymmetry improved significantly.
目的：探讨单侧后牙反牙合髁突前伸运动轨迹的特征并比较与正常牙合之间的差异。
Objective:To study character mandibular movement tracings during mandibular protrusion in patients with unilateral posterior crossbite and compare the difference with normal occlusion.
目的：探讨弹性包绕式垫加螺旋扩弓器矫治替牙期后牙反的适用性及治疗前后的牙颌结构变化。
Objective:To evaluate the maxillary expansion effects of posterior crossbite patients treated with elastic wrapping bite guard and screw expansion mechanic in the mixed dentition.
有学者认为早期单侧后牙反牙合患者下颌偏斜大部分属于功能性偏斜，当采用扩大上颌牙弓矫治后牙反牙合后，下颌功能性偏斜可得到纠正，颜面不对称程度可以改善。
Some scholars deem that early UPXB mostly belongs to functional mandible deviation and correction of it through maxillary expansion is associated with a good change in mandible deviation.
结论：采用固定矫治器结合后牙垫高矫治反牙合具有矫治时间短，不依赖患者主动配合的优点。
Conclusion: treatment of anterior crossbite with fixed appliance and blocking up posterior teeth has excellence of short treatment time and do not need patient's cooperation.
结论：采用固定矫治器结合后牙垫高矫治反牙合具有矫治时间短，不依赖患者主动配合的优点。
Conclusion: treatment of anterior crossbite with fixed appliance and blocking up posterior teeth has excellence of short treatment time and do not need patient's cooperation.
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