关键词: 微种植钉, 皮质骨微损伤, 稳定性, 正畸

Abstract: Good anchorage design and control are crucial for the success of orthodontic treatment. Micro-implants，due to their low cost，small size，flexible implantation positions and simple operation，have been widely used in clinical orthodontics. In the initial stage of micro-implantation，primarily the dense cortical bone provides mechanical interlocking fixation for the micro-implant to achieve initial stability，while during the implantation process，the micro-implant also exerts compressive forces on the surrounding cortical bone，inducing morphological and microstructural alterations，which may affect the stability of micro-implant in the end. Therefore，this article presents a comprehensive review of recent research progress on changes in surrounding cortical bone after micro-implantation，related influencing factors，and the impact of these changes on the stability of micro-implant. The objective is to provide guidance for the application of micro-implants in orthodontic clinical practice.

Key words: micro-implant, cortical bone micro-damage, stability, orthodontics