改良(牙合)垫式活动矫治器矫治33例儿童乳牙反(牙合)的疗效观察
개량(아합)점식활동교치기교치33례인동유아반(아합)적료효관찰
Effect observation of modified occlusion pad removable appliance in the treatment of 33 cases of children deciduous teeth cross bite
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