经颅磁刺激对夜磨牙患者咬肌运动诱发电位的研究

发布时间：2018-06-25 08:57

本文选题：咬肌运动诱发电位(MEP) + 经颅磁刺激(TMS)　；参考：《实用口腔医学杂志》2014年05期

【摘要】：目的:比较夜磨牙患者与正常对照组经颅磁刺激(TMS)下产生的咬肌运动诱发电位(MEP)的异同。方法:纳入30名夜磨牙患者及30名健康志愿者,单脉冲TMS大脑皮层面部运动区域,记录咬肌MEP,分析比较2组MEP的各项参数。试验均在白天受试者清醒的状态下进行。结果:夜磨牙组咬肌MEP的激发阈值(130%AMT)为53%,对侧MEP(c-MEP)的潜伏期为(6.7±1.3)ms、波幅为0.19(0.15,0.29)mV,三叉神经根MEP(r-MEP)的潜伏期为(2.3±0.4)ms,中枢传导时间(CCT)为4.4(3.3,5.2)ms;正常对照组AMT为52(52,55)%,c-MEP的潜伏期为(6.4±0.7)ms、波幅为0.23(0.17,0.28)mV,r-MEP的潜伏期为(2.4±0.4)ms,CCT为4.0(3.4,4.4)ms,2组咬肌运动诱发电位各项参数均无统计学差别。结论:与正常人相比较,夜磨牙患者大脑皮层运动系统兴奋性未见明显改变。
[Abstract]:Aim: to compare the difference of motor evoked potential (MEP) of masseter muscle between patients with night molars and normal controls under transcranial magnetic stimulation (TMS). Methods: 30 patients with night molars and 30 healthy volunteers were enrolled in this study. MEPs of masseter muscle were recorded in the facial motor region of cerebral cortex of single pulse TMS, and the parameters of MEP in both groups were analyzed and compared. The experiments were carried out during the day when the subjects were awake. Results: the excitation threshold (130 AMT) of masseter muscle was 53, the latency of contralateral MEP (c-MEP) was (6.7 卤1.3) Ms, the amplitude of MEP was 0.19 (0.150.29) MV, the latency of trigeminal root MEP (r-MEP) was (2.3 卤0.4) msand the central conduction time (CCT) was 4.4 (3.3 卤5.2) Ms, and the latency of c-MEP was (6.4 卤0.7) msand the amplitude was 0.23 (0.170.28) mVr-MEP in normal control group. There was no significant difference in the parameters of masseter motor evoked potential between the two groups (2.4 卤0.4) MST 4.0 (3.44.4) MSE. Conclusion: compared with normal subjects, the excitability of cerebral cortex motor system in patients with night molars has no obvious change.
【作者单位】：同济大学口腔医学院修复科;上海交通大学医学院附属精神卫生中心脑电影像眼动室;
【基金】：国家自然科学基金(编号:30700960) 上海市科学技术委员会科技人才计划(编号:10QA1407400)
【分类号】：R781

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