摘要Ⅲ类错 不仅影响颌面部生长发育、咬合功能及面部美观，也可导致严重的心理问题。本文就Ⅲ类错 的定义、分类、病因学机制、颅面生长发育规律以及早期治疗对颅颌面生长发育的影响进行阐述，提出Ⅲ类错 早期干预需评估和分析其颅颌面生长发育规律，并利用矫治器引导颅颌面生长，达到治疗Ⅲ类错 的目的。

abstractsMore and more attention has been paid to the early treatment of malocclusion, especially the early treatment of class Ⅲ malocclusion. Class Ⅲ malocclusion not only affects maxillofacial growth and development, occlusal function and facial beauty, but also leads to serious physical and mental problems. Focusing on class Ⅲ malocclusion, the definition, classification, etiological mechanism, craniofacial growth and development rule, and the influence of early treatment on craniofacial growth and development were reviewed. In class Ⅲ patients, the craniofacial growth and development should be evaluated and analyzed when the early intervention carried out. The purpose of treatment of class Ⅲ malocclusion is achieved by using the appliance to affect the craniomaxillofacial growth.