微螺钉种植体作为一种绝对支抗已经获得动物实验和临床试验结果的证实,实现了正畸临床对于支抗的绝对控制,很大程度上扩宽了正畸矫治的范围.即使没有患者的配合,微螺钉也能为牙齿移动提供非常稳定的支抗,甚至可以直接控制牙齿的移动,使其到达理想的位置;这在传统的正畸矫治设计中是无法实现的.但在微螺钉的使用过程中也出现了并发症或风险,包括微螺钉的折断、种植支抗的失败以及软硬组织的损伤等,临床应充分认识风险存在的原因并尽量减少或避免风险的发生.“,”The miniscrews have been confirmed by animal experiments and clinical trials as absolute orthodontic anchorage alternative to traditional orthodontic treatment,which has greatly widened the scope of clinical orthodontics.Miniscrew implants can provide stationary anchorage for various tooth movements without requiring patient cooperation,and even can directly control the teeth to move to the ideal position.However,clinical use of miniscrew anchorage is associated with complications or risks,such as miniscrew fracture,anchorage failure and soft and hard tissue injuries,which should be fully understood to reduce or avoid the risks.