正畸负载下微种植支抗移位的研究进展

Research progress on mini-implant displacement under orthodontic loading

微种植体支抗被认为是正畸治疗中的"绝对支抗",然而,近年来的研究显示:在正畸负载下,种植支抗尽管不松动脱落,但存在着一定程度的移位。这种现象可能会损伤相邻牙根等解剖结构,从而影响种植的成功率,在临床上也容易被正畸医生忽视。本文对种植支抗负载下的初始移位和继发移位的最新研究作一综述。

Mini-implants are widely used for absolute anchorage during orthodontic treatment. However, an increasing number of studies have reported that mini-implants do not remain in exactly the same position during treatment, even if they remain stable. Most orthodontists neglect the mini-implant displacement that can injure anatomical structures and increase the risk of implant loosening. This review investigates primary and secondary displacement.