Early orthodontic treatment is an important means of preventing and treating dentofacial deformities during the period of growth and development. In this stage, children have great potential in growth and development, high adaptability of muscles and temporomandibular joint, and good responsiveness to orthodontic force. Therefore, orthodontic intervention and treatment in this stage can prevent and guide the normal growth and development of dentition, occlusion and maxillofacial complex. This article summarizes the commonly used orthodontic techniques and appliances in the mixed dentition, including interceptive treatment of oral habits, application of functional appliances, fixed appliances, clear aligners, as well as management of severe crowding and space maintenance. This article comprehensively explains the application and indications of different orthodontic techniques in design and appliance selection in the treatment of malocclusions in the mixed dentition.
早期矫治是对儿童生长发育期间出现的牙颌畸形的重要防治手段。此阶段儿童具备较大的生长发育潜力，肌肉和关节适应性强，对矫治力反应性好，通过正畸的干预和治疗可预防和引导牙、牙列、(牙合)及颌面部的正常生长发育。本文从临床应用的角度总结混合牙列期常用的矫治方法和矫治装置，囊括口腔不良习惯的阻断治疗，功能矫治器、固定矫治器、无托槽隐形矫治器的干预治疗，以及牙列间隙和严重拥挤的管理等方面内容，全面阐述不同矫治技术应用的范围及适应证，为混合牙列期错(牙合)畸形的矫治设计及矫治器选择提供参考。.