Elimination of transverse dental compensation is critical for treatment of patients with severe facial asymmetry
Elimination of transverse dental compensation is critical for treatment of patients with severe facial asymmetry
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DOI：
10.1016/j.ajodo.2007.10.064
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发表时间：
2010-04-01
影响因子：
3
通讯作者：
Seto, Kan-ichi
中科院分区：
文献类型：
--
作者：
Sekiya, Toshiko;Nakamura, Yoshiki;Seto, Kan-ichi
本病例报告描述了在术前正畸治疗中消除横向牙齿补偿的重要性，为严重的面部不对称的患者。患者是一名17岁的日本女性，有严重的面部不对称，包括上颌骨和下颌骨，以及两个牙弓中前后牙的极度横向牙齿补偿。因此，主要的治疗目标是通过正畸治疗消除横向牙齿补偿和通过正颌外科手术矫正上颌骨和下颌骨的形态。术前正畸治疗充分消除了牙齿的横向补偿，使牙齿移动到适当的位置，使基骨牢固地支持它们。行LeFort I型截骨术和升支矢状劈开截骨术矫正骨骼形态。面部不对称性得到了显著改善，并获得了良好的咬合。手术矫正后1年8个月，颜面对称性及咬合关系仍良好。结果表明，在术前正畸治疗中充分消除上颌骨和下颌牙弓的横向牙齿补偿是成功治疗严重面部不对称的必要条件。(Am J Orthod Dentofacial Orthop 2010;137：552-62）
This case report describes the importance of eliminating transverse dental compensation during preoperative orthodontic treatment for a patient with severe facial asymmetry. The patient, a 17-year-old Japanese woman, had severe facial asymmetry involving the maxilla and the mandible, and extreme transverse dental compensation of the anterior and posterior teeth in both arches. Therefore, the main treatment objectives were elimination of the transverse dental compensation by orthodontic treatment and correction of the morphology of the maxilla and the mandible by orthognathic surgery. The preoperative orthodontic treatment resulted in sufficient elimination of the transverse dental compensation and movement of the teeth into their proper positions so that basal bone firmly supported them. LeFort I osteotomy and sagittal split ramus osteotomy were performed to correct the skeletal morphology. Facial asymmetry was dramatically improved, and a favorable occlusion was obtained. At 1 year 8 months after the surgical orthodontic treatment, the facial symmetry and occlusion remained favorable. The results suggest that sufficient elimination of transverse dental compensation in the maxillary and mandibular arches during preoperative orthodontic treatment is requisite for successful treatment of severe facial asymmetry. (Am J Orthod Dentofacial Orthop 2010;137:552-62)