Effect of occlusal splints on the electromyographic activities of masseter muscles during maximum clenching in patients with myofascial pain-dysfunction syndrome

Yasuyuki Kawazoe, Hiroo Kotani, Taizo Hamada, Sanae Yamada

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)578-580
Number of pages3
JournalThe Journal of Prosthetic Dentistry
Volume43
Issue number5
DOIs
Publication statusPublished - 1980 May

ASJC Scopus subject areas

  • Oral Surgery

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