Mandibular movement is a kind of complex spacial three dimensional movement which is the result of contractions of active masticatory muscles and guided by the occlusion and temporomandibular joints.

• 下颌运动是在牙合、咀嚼肌及颞下颌关节共同参与下进行的一种复杂的三维运动,对下颌运动的研究是通过下颌运动轨迹描记仪进行的。