Kawazoe Y, Kotani H, Hamada T, Yamada S
J Prosthet Dent. 1980 May;43(5):578-80. doi: 10.1016/0022-3913(80)90334-0.
Integrated EMG activities of masseter muscles during maximum voluntary isometric contraction with and without full-arch maxillary stabilization splints were observed in patients with MPD syndrome having occlusal interferences and in healthy subjects having no occlusal interferences. The masseter muscle activity was more significantly reduced in patients with MPD syndrome during maximum clenching with splints than in those patients without splints. In healthy subjects, such a significant difference could not be observed with and without splints. This finding suggests that the elimination of the occlusal interferences by means of occlusal splints could reduce the degree of sensory information from the periodontal receptors during nocturnal clenching or grinding. This could result in a decrease in masseter muscle activity giving rise to muscular relaxation.
在患有咬合干扰的MPD综合征患者以及无咬合干扰的健康受试者中，观察了佩戴和不佩戴全牙弓上颌稳定矫治器时咬肌在最大自主等长收缩过程中的肌电图综合活动。与未佩戴矫治器的MPD综合征患者相比，佩戴矫治器的患者在最大紧咬时咬肌活动的降低更为显著。在健康受试者中，佩戴和不佩戴矫治器时未观察到如此显著的差异。这一发现表明，通过咬合矫治器消除咬合干扰可减少夜间紧咬或磨牙时来自牙周感受器的感觉信息程度。这可能导致咬肌活动减少，从而引起肌肉放松。
