下颌偏斜畸形表现程度随生长发育逐渐加重，从替牙期到恒牙期有从下颌移位向真性骨骼畸形发展的趋势。
Display degree of mandibular lateral deformity is aggravating gradually to grow at the same time, which is development trend from mandible shift to the genuine skeleton deformity.
牙移位是最常见的临床表现。
目的：评价牙周-正畸联合治疗牙周炎致前牙扇形移位的临床效果。
PURPOSE: To evaluate the clinical effects of combined periodontal and orthodontic method in treating labial displacement of anterior teeth caused by periodontitis.
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