安氏Ⅱ1类错牙合畸形患者拔牙矫治前后软硬组织变化的研究
颜彦 1, 王建国 2, 张淋坤 2
Changes of soft and hard tissues of patients with Angle class Ⅱ division I malocclusion following orthodontic treatment with extraction
YAN Yan1, WANG Jianguo2, ZHANG Linkun2
天津医药 . 2016, (5): 617 -620 .  DOI: 10.11958/20150222