论文部分内容阅读
安氏Ⅱ类错是临床上较常见的错类型之一,约占错畸形的50%,且其中73%为下颌后缩型[1]。由于畸形形成的外貌特征和功能对患者的身心健康影响较大,就诊率高,临床诊断及治疗较为复杂。其治疗方法主要有功能矫治器治疗、固定矫治器治疗和正颌手术治疗[2]。临床上常采用功能矫治器在替牙期、恒牙早期进行矫形治疗,现有的导下颌向前功能矫治器包括肌激动器、生物调节器、功能调节器、推杆式导下颌向前的功能矫治器、
Class II malocclusion is one of the more common misclassifications in clinical practice, accounting for about 50% of deformities, and 73% of them are mandibular retrusion [1]. Due to the formation of deformity appearance and function of the physical and mental health of patients greater impact on the high rate of clinical diagnosis and treatment more complicated. The treatment of functional orthodontic treatment, fixed appliance treatment and orthognathic surgery [2]. Clinically, orthodontic treatment is often used in orthodontics and permanent teeth in the early stage of orthodontic treatment. The existing orthodontic appliances include muscle exciters, biological regulators, functional regulators, push-rod-guided jaw forward Functional appliances,