现代阔口蛇，像蟒蛇和水蟒，能吃大的猎物是因为它们的颌关节恰位于头骨的后面，能使蛇的嘴张得非常宽。
Modern large-mouthed snakes, such as boas and anacondas, can eat large prey because their jaw joints are positioned well behind their skulls, allowing the snakes to open their mouths very wide.
使用外科手术和其他专业技术诊断和治疗牙齿和口颌中相关组织的疾病、损伤、不规则和畸形。
Diagnoses and treats diseases, injuries, irregularities and malformations of teeth and associated structures in the mouth and jaw using surgery and other specialist techniques.
结果：TD发生率26.78%，好发部位依次为舌部、唇部和口周部、颌部、上肢、下肢、面部表情肌、颈、肩、臀。
Results: The incidence of TD was 26.78%. The predilection site is the tongue, lip and mouth, jaw, upper limb, lower limb, facial expression muscle, neck shoulder buttocks in turn.
因此对下颌运动进行分析可判明口-颌系统生理或病理状况，对口腔医学诊断具有重要意义。
Analysis of the movement is thus of great importance to the perception of physio-logical and pathological condition of the oral-mandibular system and also to the stomatological and clinical diagnosis.
方法采用颌面结构分析法测定115例男性OSA患者鼻咽、口咽及下咽部5个层面的气道径及上气道长度、面积值，以及15项颌面结构参数。
Methods Fifteen craniofacial soft tissue and bony structure variables and 7 upper airway variables were measured in 115 male OSA patients using cephalometry technique.
方法采用颌面结构分析法测定115例男性OSA患者鼻咽、口咽及下咽部5个层面的气道径及上气道长度、面积值，以及15项颌面结构参数。
Methods Fifteen craniofacial soft tissue and bony structure variables and 7 upper airway variables were measured in 115 male OSA patients using cephalometry technique.
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