Damon Q自锁托槽和传统MBT托槽对拔牙病例上前牙转矩的控制

林爽杜静雷浪李煌

Retrospective clinical study on maxillary incisor torque with conventional MBT and Damon Q selfligating brackets in extraction treatment

口腔医学 . 2017, (9): 810 -814 .