摘要
以肌电仪对３０名成人骨性ＡｎｇｌｅⅢ类错者的咀嚼肌肌电变化进行测量，并与正常成人比较，发现成人骨性ＡｎｇｌｅⅢ类错患者咀嚼肌有异常肌活动，肌电变化出现异常。其在下颌前伸运动时，颞肌前束出现异常肌活动，下颌后退运动时，其嚼肌出现异常肌活动，两者之肌电位均较正常者高。下颌左右侧方运动时，其同侧嚼肌和对侧颞肌前束均出现异常肌活动，肌电位亦较正常者高。
The EMG changes of
masticatory muscles in 30 class Ⅲ malocclusion patients were
investigated and compared with 28 normal people. Results showed the
abnormal muscle activity and EMG changes appeared in masticatory
muscles. For example,the abnormal activity appeared in the anterior
bundle of temporal muscle in protraction movement.The abnormal
activity of masseter muscle appeared in retraction movement.And both
muscles showed higher potential.The ipsilateral masseter and
contralateral anterior bundle of temporal muscles showed abnormal
activity and higher potential in right and left movement.
出处
《北京医科大学学报》
CSCD
1995年第3期213-215,共3页
Journal of Peking University(Health Sciences)
基金
卫生部科学研究基金
关键词
错颌
咀嚼肌
肌电描记术
下颌
Headings Malocclusion,Angle class
Masticatory
muscles
Electromyography
Mandible
