Takashima Mariko, Kitai Noriyuki, Mori Yoshihide, Murakami Shumei, Kreiborg Sven, Takada Kenji
Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Osaka, Japan.
Cleft Palate Craniofac J. 2003 Jul;40(4):437-45. doi: 10.1597/1545-1569_2003_040_0437_mdouai_2.0.co_2.
To present orthodontic treatment combined with mandibular distraction osteogenesis using an intraoral device and a bite plate in a patient with hemifacial microsomia, severe facial asymmetry, and unilateral mandibular hypoplasia.
An 8-year-old girl exhibited mandibular deviation resulting from hypoplasia of the mandibular condyle and ramus on the left side. The patient was treated with an intraoral device for mandibular distraction osteogenesis, bite plate, and hybrid-type functional appliance. Facial asymmetry was improved, and the mandibular ramus was elongated in an anterior and primarily posterior direction with slightly posterior and superior displacement of the proximal segment. Postdistraction treatment results have been stable for 1 year. At the 1-year follow-up, the volume of the lateral and medial pterygoid muscles on the left side had increased. The condyle and disc on the right temporomandibular joint moved well and in harmony at open mouth position, and a rotational movement of the left temporomandibular joint was observed.
介绍在一名患有半侧颜面短小、严重面部不对称和单侧下颌发育不全的患者中，使用口内装置和咬合板进行正畸治疗联合下颌骨牵张成骨术。
一名8岁女孩，因左侧下颌髁突和下颌升支发育不全导致下颌偏斜。该患者接受了用于下颌骨牵张成骨术的口内装置、咬合板和混合型功能性矫治器治疗。面部不对称得到改善，下颌升支向前并主要向后延长，近端节段有轻微向后和向上移位。牵张后治疗结果已稳定1年。在1年随访时，左侧翼外肌和翼内肌体积增加。右侧颞下颌关节的髁突和关节盘在开口位运动良好且协调，左侧颞下颌关节观察到旋转运动。
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