安氏Ⅱ1类错(牙合)成年与青少年拔牙矫治后软硬组织变化的相关性研究
안씨Ⅱ1류착(아합)성년여청소년발아교치후연경조직변화적상관성연구
A correlation study on changes of soft and hard tissues in adult and adolescent with Angle Class Ⅱ 1 Malocclusion following tooth extraction
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