Hugger S, Schindler H J, Kordass B, Hugger A
Department of Prosthodontics, Center for Dental, Oral and Maxillofacial Medicine, University of Cologne, Germany.
Int J Comput Dent. 2013;16(2):119-23.
The third part of this literature review on the clinical relevance of surface electromyography (EMG) of the masticatory muscles summarizes the results of clinical studies in patients with temporomandibular disorders (TMD), preferably randomized controlled trials, examining the impact of changes to the dynamic occlusion. Clenching in left and right laterotrusive positions results in decrease in EMG activity of masseter and temporalis muscles on both working and non-working side. Masseter muscle exhibits largely uniform bilateral activity in laterotrusive positions, independent of canine guidance or group function with and without non-working side contacts. There is a dominance of temporalis muscle activity on the working side and, in case of posterior contacts and balancing contacts, temporalis muscle activity increases and changes from an unilateral to a symmetrical pattern.
这篇关于咀嚼肌表面肌电图（EMG）临床相关性的文献综述的第三部分总结了颞下颌关节紊乱病（TMD）患者临床研究的结果，最好是随机对照试验，研究动态咬合变化的影响。在左右侧方咬合位紧咬时，工作侧和非工作侧的咬肌和颞肌的肌电图活动均降低。在侧方咬合位时，咬肌在很大程度上表现出双侧均匀活动，与尖牙引导或有无非工作侧接触的组功能无关。工作侧颞肌活动占主导，在存在后牙接触和平衡接触的情况下，颞肌活动增加并从单侧模式转变为对称模式。
