Iino Shoichiro, Sakoda Sumio, Miyawaki Shouichi
Department of Orthodontics, Center of Developmental Dentistry, Medical and Dental Hospital, Kagoshima University, Kagoshima, Japan.
Angle Orthod. 2006 Nov;76(6):1074-82. doi: 10.2319/103105-384.
We performed an orthodontic treatment combined with corticotomy and the placement of titanium miniplates in an adult patient who desired a shortened treatment period. The patient had an Angle Class I malocclusion with flaring of the maxillary and mandibular incisors. First, titanium miniplates were placed into the buccal alveolar bone of the maxilla for absolute orthodontic anchorage. Second, an edgewise appliance was applied to the maxillary and mandibular teeth. Then, the maxillary first premolars and mandibular second premolars were extracted. At the same time, a corticotomy was performed on the cortical bone of the lingual and buccal sides in the maxillary anterior as well as the mandibular anterior and posterior regions. Leveling was initiated immediately after the corticotomy. The extraction spaces were closed with conventional orthodontic force (approximately 1 N per side). The edgewise appliance was adjusted once every 2 weeks. The total treatment time was 1 year. Cephalometric superimpositions showed no anchorage loss, and panoramic radiographs showed neither significant reduction in the crest bone height nor marked apical root resorption. A corticotomy-facilitated orthodontic treatment with titanium miniplates might shorten an orthodontic treatment period without any anchorage loss or adverse effects.
我们对一名希望缩短治疗周期的成年患者进行了正畸治疗，并结合皮质骨切开术和钛微型钢板植入。该患者为安氏I类错牙合，上颌和下颌切牙唇倾。首先，将钛微型钢板植入上颌颊侧牙槽骨以获得绝对的正畸支抗。其次，在上颌和下颌牙齿上应用方丝弓矫治器。然后，拔除上颌第一前磨牙和下颌第二前磨牙。同时，在上颌前部以及下颌前部和后部区域的舌侧和颊侧皮质骨上进行皮质骨切开术。皮质骨切开术后立即开始排齐整平。用传统正畸力（每侧约1N）关闭拔牙间隙。每2周调整一次方丝弓矫治器。总治疗时间为1年。头影测量重叠显示无支抗丧失，全景片显示牙槽嵴骨高度无明显降低，根尖也无明显吸收。采用钛微型钢板辅助的皮质骨切开术进行正畸治疗可能会缩短正畸治疗周期，且无支抗丧失或不良反应。
