正畸与正颌联合治疗成人骨性反后咀嚼肌肌电变化  

Effect of orthodontic and surgical treatments of skeletal crossbite on the electromyographic activity of human masticatory muscles

作　　者：冷军[1] 段银钟[1] 张俊华 王乐文[3] 李永明[1] 

机构地区：[1]西安第四军医大学口腔医学院正畸科,710032 [2]第四军医大学口腔医院解剖生理教研室 [3]北京解放军305医院口腔科

出　　处：《实用口腔医学杂志》2004年第3期346-348,共3页Journal of Practical Stomatology

摘　　要：目的 :检查对比分析成人骨性反牙合正畸与正颌手术联合矫治前后的主要咀嚼肌肌电 ,揭示正畸与正颌手术联合矫治后咀嚼肌功能的变化规律。方法 :2 0名正畸与正颌手术联合治疗的成人骨性反牙合患者 ,利用肌电图仪测试治疗前后咬肌、颞肌前束、二腹肌前腹在功能活动中肌电变化。结果 :正畸与正颌手术联合矫治对咬肌、颞肌前束、二腹肌前腹的功能活动均有不同程度的影响 ,其中对咬肌的功能影响最明显。结论 :正畸与正颌手术联合治疗成人骨性反牙合 ,咀嚼肌的异常肌张力多数得到纠正 ,但咀嚼肌的功能未能得到满意的恢复 ,咀嚼肌的功能恢复是一个复杂而长期的过程 。Objective: To investigate the effect of orthodontic and surgical treatments of skeletal crossbite on the electromyographic activity of human masticatory muscles. Methods: Electromyogram was used to test the changes of the electromyographic activity of masseter muscles, temporal anterior and diagastric anterior in 20 patients with skeletal crossbite before and after treatments. Results: Orthodontic and surgical treatments showed different effect on the activity of masseter muscle, temporal anterior and diagastric anterior. The change of the activity of the masseter muscle was the most significant among them. But, during chewing the masseter muscle was less active after treatments. Conclusion: Abnormal activity of the masticatory muscles can be partly corrected by the orthodontic and surgical treatments. The treatments cannot fully recover the function of the masseter muscle.

关 键 词：肌电抛记术 咀嚼肌 正畸治疗 正颌手术 骨性反HE 

分 类 号：R783[医药卫生—口腔医学]