Miralles R, Mendoza C, Santander H, Zuniga C, Moya H
Faculty of Medicine, University of Chile, Santiago.
Cranio. 1992 Oct;10(4):297-304. doi: 10.1080/08869634.1992.11677926.
The present work was conducted in order to determine the effect of stabilization occlusal splints on electromyographic (EMG) activity of sternocleidomastoid and masseter muscles, in subjects with tenderness to palpation in these muscles. A full-arch maxillary stabilization occlusal splint was made for each of 14 subjects. Tonic EMG activity, as well as during saliva swallowing and maximal voluntary clenching, was recorded with and without a stabilization occlusal splint inserted. Similar tonic, as well as maximal voluntary clenching EMG activity, with and without the stabilization occlusal splint, was observed. During saliva swallowing, the activity in both muscles was significantly lower with the stabilization occlusal splint. This suggests that daytime use of the stabilization occlusal splint might improve tenderness to palpation in the studied muscles, since the frequency of swallowing function is higher during waking hours.
本研究旨在确定稳定咬合夹板对胸锁乳突肌和咬肌肌电图（EMG）活动的影响，这些研究对象的这些肌肉存在触压痛。为14名受试者每人制作了一个全牙弓上颌稳定咬合夹板。在插入和未插入稳定咬合夹板的情况下，记录静息肌电图活动以及唾液吞咽和最大自主紧咬时的肌电图活动。观察到使用和未使用稳定咬合夹板时，静息以及最大自主紧咬时的肌电图活动相似。在唾液吞咽过程中，使用稳定咬合夹板时，两块肌肉的活动均显著降低。这表明白天使用稳定咬合夹板可能会改善所研究肌肉的触压痛，因为清醒时吞咽功能的频率更高。
