Abstract: The occlusal plane is a core factor in orthodontic treatment and is closely associated with facial aesthetics and occlusal function. During orthodontic treatment，adjustments of the relationship between teeth position and dentoalveolar arch should be based on the position of occlusal plane. Therefore，proper guidance and control the growth direction and angle of the occlusal plane is of great significance for facial aesthetics，temporomandibular joint health，as well as soft and hard tissue and upper airway function. This article systematically elaborates on the definition and classification of the occlusal plane，including the anatomical occlusal plane，functional occlusal plane，maxillary occlusal plane，mandibular occlusal plane，anterior occlusal plane，posterior occlusal plane，and functional-aesthetic occlusal plane. It also discusses the influence of skeletal facial patterns and their growth modification on occlusal plane characteristics，along with the corresponding orthodontic regulation mechanisms，and analyzes the impacts of occlusal plane changes on patients′ facial profile，temporomandibular joints and upper airway，aiming to highlight the importance of occlusal plane control in orthodontic treatment.

Key words: occlusal plane, orthodontics, malocclusion

摘要： 𬌗平面是正畸治疗的核心因素，与面部美观、咬合功能等密切相关。正畸治疗过程中，牙齿位置与牙列关系的调整需依据𬌗平面位置进行。因此，正确引导和控制𬌗平面的生长方向与角度，对于面型美观、颞下颌关节健康及软硬组织和上气道功能均具有重要意义。文章系统阐述了𬌗平面的定义与分类（包括解剖性𬌗平面、功能性𬌗平面、上颌𬌗平面、下颌𬌗平面、前𬌗平面、后𬌗平面和功能美学𬌗平面），探讨了骨面型及其生长发育改良对𬌗平面特征的影响及正畸调控机制，分析了𬌗平面变化对正畸患者侧貌、颞下颌关节和上气道的影响，以期强调正畸治疗中控制𬌗平面的重要性。

关键词: ??平面, 正畸, 错??畸形