Different approaches to the treatment of skeletal Class II malocclusion during growth: Bionator versus extraoral appliance

ABSTRACT Introduction: Class II malocclusion, which has a significant incidence in the population, may compromise facial esthetics and the smile, as well as the masticatory and respiratory functions. Often associated with skeletal abnormalities, it severely affects and compromises quality of life. An accurate diagnosis is fundamental to prepare a treatment plan to correct dental and skeletal anomalies. Objectives: This study discusses treatment alternatives to the correction of Class II division 1 and 2 malocclusion in growing patients, using a Bionator and an extraoral appliance.

摘要
引言：安氏Ⅱ类错𬌗畸形（Class II malocclusion）在人群中发病率较高，可损害颜面美观与笑容表现，同时影响咀嚼与呼吸功能。该畸形常伴随骨骼异常，严重损害患者的生活质量。精准诊断是制定矫正牙颌与骨骼异常的治疗方案的核心前提。
研究目标：本研究探讨了使用肌激动器（Bionator）与口外矫治器（extraoral appliance）矫正生长发育期患者安氏Ⅱ类1分类错𬌗与安氏Ⅱ类2分类错𬌗的可选治疗方案。