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用上海制JD-2肌电图机,在预定部位,以面极对颞肌、嚼肌及二腹肌,以针极对翼外肌,进行了各种颌验位运动的肌电图研究。结果显示活动明显的肌肉:在正中咬合为颞肌、嚼肌及翼外肌;侧向咬合:工作侧为颞肌及翼外肌,平衡侧为嚼肌及翼外肌;前伸边缘运动为翼外肌,后退边缘运动为颞肌;大张口边缘运动为翼外肌及二腹肌。
With the Shanghai system JD-2 EMG machine, in a predetermined part of the surface to the right temporalis muscle, chewing muscle and the two abdominal muscles, to the pole of the outer wing muscles, conducted a variety of jaw EMG test the study. The results showed that the obvious activity of the muscles: in the middle of the occlusion of the temporalis muscles, chewing muscles and pterygoid muscle; Lateral occlusion: the working side of the temporal and pterygoid muscles, the lateral side of the muscle and pterygoid muscle; Pterygoid muscle, back edge of the movement of the temporal muscle; large mouth edge movement of the pterygoid muscle and the two abdominal muscles.