Jiang Jian-jiang, Peng Chun-mei
Department of Orthodontics, Shaoxing Stomatological Hospital. Shaoxing 312000;China.E-mail:
Shanghai Kou Qiang Yi Xue. 2014 Apr;23(2):192-5.
To investigate the treatment of impacted mandibular first molars by straight wire appliance technique, and evaluate the effectiveness of treatment.
Eight patients with first mandibular impacted molars were treated with MBT straight wire appliance. Surgical fenestration was done after sufficient space created. Statistical comparisons were carried out using t test by SPSS 12.0 software package.
Eight mandibular impacted molars were brought into occlusal plane (3.94±0.49 mm), and the overbite and overjet were normal. Good occlusion was achieved. X-ray film showed that alveolar bone growth around the molars was good.
Orthodontic treatment combined with surgical fenestration can effectively correct the impacted mandibular first molars. Supported by Natural Science Foundation of Zhejiang Province (Y2080253).
探讨直丝弓矫治技术治疗下颌埋伏第一磨牙的方法，并评价其治疗效果。
对8例下颌第一磨牙埋伏患者采用MBT直丝弓矫治器进行治疗，在创造足够间隙后行外科开窗术。使用SPSS 12.0软件包进行t检验统计比较。
8颗下颌埋伏磨牙被牵至咬合平面（3.94±0.49 mm），覆合覆盖正常，咬合良好。X线片显示磨牙周围牙槽骨生长良好。
正畸治疗联合外科开窗术可有效矫治下颌埋伏第一磨牙。浙江省自然科学基金资助（Y2080253）。
