Kanno Zuisei, Kim Yoonji, Soma Kunimichi
Orthodontic Science, Department of Orofacial Development and Function, Division of Oral Health Science, Tokyo Medical and Dental University, Yushima, Tokyo, Japan.
Angle Orthod. 2007 May;77(3):549-56. doi: 10.2319/0003-3219(2007)077[0549:ECOADS]2.0.CO;2.
This case report describes the treatment of a Japanese girl aged 11 years 10 months who had a severe Class III malocclusion with a concave facial profile. She presented hypodivergent skeletal pattern with a -4.0-mm anterior crossbite and a deep overbite. She also had facial asymmetry attributed partly to the lateral mandibular shift to avoid incisal interferences. The treatment plan included a monoblock appliance, rapid palatal expansion, and fixed edgewise appliances at the final stage. The monoblock appliance was used to redirect the growth of the mandible to a clockwise direction and simultaneously correct the incisal relationships along with fixed edgewise appliances. Good incisal relationships were achieved, and facial esthetics was greatly improved after 28 months of treatment. Stability of the treatment result was excellent in the 3-year 9-month follow-up at the age of 18.
本病例报告描述了一名11岁10个月的日本女孩的治疗情况，她患有严重的III类错牙合畸形，面部轮廓呈凹面型。她表现为低角骨骼型，伴有4.0毫米的前牙反牙合和深覆牙合。她还存在面部不对称，部分原因是下颌向侧方移位以避免切牙干扰。治疗计划包括使用一体式矫治器、快速腭开展以及在最后阶段使用固定直丝弓矫治器。一体式矫治器用于将下颌生长方向引导至顺时针方向，并与固定直丝弓矫治器同时矫正切牙关系。治疗28个月后，实现了良好的切牙关系，面部美观得到了极大改善。在18岁时进行的3年9个月随访中，治疗结果的稳定性极佳。
