Early and late electromyographic response to treatment with activators.
Early and late electromyographic response to treatment with activators.
复制标题
对激活剂治疗的早期和晚期肌电图反应。
DOI：
10.1016/0002-9416(78)90048-9
复制
发表时间：
1978
期刊：
影响因子：
--
通讯作者：
J. Ahlgren
中科院分区：
文献类型：
--
作者：
J. Ahlgren
对20例使用激活器治疗的II类病例进行肌电图分析表明： 1.白天使用激活器时，下颌的牵开肌受到刺激，而牵开器受到抑制。 2. 夜间使用激活剂期间，无法记录到功能刺激。激活器似乎主要通过组织拉伸和伴随的弹性回弹来操作。 3.治疗前以及治疗后，II类病例在牙尖位置闭合期间表现出平衡的肌电图模式。 4. 狭窄的上牙弓在治疗前应进行扩张，以避免咬合干扰，并使下牙弓更容易适应突出的位置。
An EMG analysis of twenty Class II cases treated with activators shows that: 1. During daytime use of activators, the protractor muscles of the mandible are stimulated, while the retractors are inhibited. 2. During nightime use of activators, no functional stimulation can be recorded. The activator appears to be operated mainly by tissue stretching and the accompanying elastic rebound. 3. Before treatment, as well as after the treatment, Class II cases show a balanced EMG pattern during closure in the intercuspal position. 4. A narrow upper arch should be expanded before treatment in order to avoid occlusal interferences and to make it easier for the lower arch to adapt itself to a protruded position.