To investigate if treatment outcome in patients with Class II division 1 malocclusion treated by a variety of approaches is affected by masticatory muscle capacity.

中文翻译：

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II 类 1 类咬合不正儿童的咬肌厚度和治疗结果。

调查通过各种方法治疗的 II 类 1 类错牙合患者的治疗结果是否受咀嚼肌能力的影响。