慢性牙周炎的减数正畸治疗

张又文¹, 辛天艺¹, 焦剑², 周彦恒¹, 施捷^1,^△

Extraction-orthodontic treatment on patients with chronicperiodontitis: a preliminary study

ZHANG You-wen¹, XIN Tian-yi¹, JIAO Jian², ZHOU Yan-heng¹, SHI Jie^1,^△

正畸前后牙齿在二维影像中的变化