Division of Orthodontics, Department of Human Development and Fostering, Meikai University School of Dentistry, Saitama, Japan.
Am J Orthod Dentofacial Orthop. 2012 Jan;141(1):94-104. doi: 10.1016/j.ajodo.2010.02.042.
Subapical mandibular surgeries have been used to correct vertical malocclusion and interdental problems associated with mandibular deformity. Subapical surgery to the anterior part of the mandible is applicable in many patients with anterior open bite and deepbite. Surgery of the posterior part of the mandible is needed less frequently than surgery of the anterior part. This case report describes the surgical-orthodontic treatment of a 21-year-old woman who underwent posterior subapical mandibular surgery. Her chief complaint was facial asymmetry, and she had a collapsed mandibular arch with a scissors-bite of the right premolars and molars. After subapical osteotomy, surgically assisted correction of the collapsed right mandibular arch was performed with a lingual arch appliance. Comprehensive orthodontic treatment was initiated in both arches after this correction. Le Fort I osteotomy and sagittal split ramus osteotomy were used to correct the facial asymmetry. Her facial appearance and temporomandibular problems were markedly improved, and she achieved a functional and stable occlusion after these treatments. This case report demonstrates the efficiency of posterior subapical mandibular surgery for a patient with a collapsed mandibular arch and a scissors-bite.
下颌骨次根尖手术已被用于矫正垂直性错颌和与下颌畸形相关的牙间问题。下颌骨前份的次根尖手术适用于许多前牙开颌和深覆颌患者。下颌骨后份的手术比前份手术需要得更少。本病例报告描述了一位 21 岁女性的手术-正畸治疗，她接受了下颌骨次根尖后份手术。她的主要诉求是面部不对称，她的下颌弓塌陷，右侧前磨牙和磨牙呈剪刀型咬合。在次根尖骨切开术后，用舌弓矫治器对塌陷的右侧下颌弓进行了手术辅助矫正。在矫正后，在两个弓上开始了全面的正畸治疗。Le Fort I 截骨术和矢状劈开下颌骨截骨术用于矫正面部不对称。她的面部外观和颞下颌关节问题明显改善，在这些治疗后获得了功能和稳定的咬合。本病例报告表明，对于下颌弓塌陷和剪刀型咬合的患者，下颌骨次根尖后份手术是有效的。
