【摘要】 上颌横向发育不足是临床中常见的错(牙合)畸形。准确判断有无上颌横向发育不足是正畸临床诊断、制定治疗方案和实现矫治目标的重要前提。本文就上牙弓和上颌骨的横向发育、上颌横向发育不足的病因及常用的诊断方法作一综述，以期为正畸临床提供有效参考。更多还原

【Abstract】 Maxillary transverse deficiency is one of the common manifestations of malocclusion in clinical practice. Accurate judgment of maxillary transverse deficiency is an important prerequisite for orthodontic clinical diagnosis, making treatment plan and achieving the goal of treatment. Therefore, this article reviews the transverse development of maxilla and maxillary arch, the etiology and commonly used diagnostic methods of maxillary transverse deficiency, in order to provide effective reference for clinical orthodontics.更多还原