关键词: 骨性Ⅱ类, 上颌前突, 功能矫治, 颞下颌关节, 髁突

Abstract: There is a high prevalence of malocclusion in Chinese children，especially and skeletal class Ⅱ malocclusion，which is more common in the clinical practice. The pathological mechanism of skeletal class Ⅱ malocclusion can be categorized by either maxillary protrusion or mandibular recession，or both. So far，there are many controversies about the efficacy of early functional orthodontic treatment for children with skeletal class Ⅱ maxillary protrusion. It is widely acknowledged that the inhibition of sagittal growth of the maxilla and the modification of the temporomandibular joint in early treatment are considered as significant clinical factors. Therefore，the analysis and summary of clinical effects have guiding significance for the treatment method and timing of early skeletal class Ⅱ maxillary protrusion malocclusion. This article reviews the research progress on the clinical efficacy of early functional orthodontic treatment for skeletal class Ⅱ maxillary protrusion malocclusion in children，and analyzes the reconstruction of maxilla and temporomandibular joint，so as to provide reference for improving the clinical treatment plan.

Key words: skeletal class Ⅱ, maxillary protrusion, functional appliance, temporomandibular joint, condylar