前方牵引器矫治骨性Ⅲ类错的临床研究进展

Clinical outcomes of maxillary protracting appliance in skeletal Class Ⅲ malocclusion

骨性Ⅲ类错是临床上常见的一种颌面发育畸形。病因及颅面特征复杂,诊断与治疗难度较大。42%～63%的骨性Ⅲ类错伴有不同程度的上颌骨发育不足。因此,临床上多使用前方牵引器联合上腭快速扩弓对骨性Ⅲ类错进行早期矫治。本文将从前方牵引对颌面软硬组织、气道的影响,以及临床应用方面做一综述。

Skeletal Class Ⅲ malocclusion is common developmental deformity. The cause and the craniofacial struc-ture are too complex to get the consummate diagnosis and treatment from ordinary orthodontist. About 42 ～ 63% of skele-tal Class Ⅲ malocclusion is combined with varying degrees of maxillary hypoplaaia, so maxillary protraction with rapidly palatal expansion is an effective treatment for skeletal Class Ⅲ malocclusion in early period. Eligible literature was re-viewed and the influence of maxillary protraction assessed in skeletal Class Ⅲ subjects on soft and hard tissue, airway,and clinical application.