将羟基磷灰石（ＨＡ）涂层钛种植体植入狗下颌骨，用１５０ｇ正畸力单独牵拉下颌第二磨牙，动态考察牙齿在受力后３个月内的移动情况，并分析引起磨牙向近中移动的原因。结果表明：第二磨牙随时间增加向近中移动，第１，２，３个月位移的平均值分别为１．０４ｍｍ，１．６８ｍｍ，１．７６ｍｍ；第二磨牙向近中移动的主要原因是种植支抗的牵拉作用。说明该类种植体在正畸治疗中，可用于移动和固定后牙 The hydroxyapatite (HA) -coated titanium implants were implanted into the mandibular of dogs and the mandibular second molars were pulled independently with 150 g orthodontic force. The movement of the teeth within 3 months after stress was investigated dynamically and analyzed. Molar move to the near reason. The results showed that the second molar moved closer to the middle with the increase of time, and the average displacement of the first, second and third months were 1.04mm, 1.68mm and 1.76mm respectively. Stretching effect of support. This type of implant in orthodontic treatment, can be used to move and fix the posterior teeth