Does leukocyte-platelet-rich fibrin (L-PRF) cause long term acceleration in the rate of canine retraction? A split-mouth, two-arm parallel group, randomized control trial

富含白细胞和血小板的纤维蛋白（L-PRF）是否会导致犬齿回缩速度长期加快？一项分口、双臂平行组、随机对照试验