安氏Ⅱ1类错(牙合)矫治中上颌尖牙远中移位对前后牙位置的影响
안씨Ⅱ1류착(아합)교치중상합첨아원중이위대전후아위치적영향
Influence of Maxillary Canine Distal Movement on the Position of Incisors and Molars in Angle Class Ⅱ1 Malocclusion