方丝弓矫治技术系列讲座（二）──关于拔牙间隙的关闭和磨牙关系的调整卢海平，傅民魁，曾祥龙经充分的排齐和整平之后，方丝弓矫治技术拔牙病例第二阶段的任务是关闭拔牙间隙和调整磨牙关系，其目的是通过前牙的适度内收及上、下颌前后牙齿移动的协调配合，获得正常的覆... Lecture on Correction Technique of Square Wire (Part Two) ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Is to close the extraction gap and adjust the molars relationship, its purpose is through the adduction of the anterior teeth and upper and lower jaw before and after the coordinated movement of teeth to get the normal coverage ...