Objective:To study the effects of vascular changes in periodontal ligament (PDL) of orthodontic tooth movement during the reconstruction of periodontal tissues(PDT).
目的：通过定性和定量的方法研究正畸牙齿移动牙周膜（PDL）血管变化的规律。
Objective:To study the effects of vascular changes in periodontal ligament (PDL) of orthodontic tooth movement during the reconstruction of periodontal tissues(PDT).
目的：通过定性和定量的方法研究正畸牙齿移动牙周膜（PDL）血管变化的规律。
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