{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T12:43:39Z","timestamp":1777121019061,"version":"3.51.4"},"reference-count":24,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2013,8,31]],"date-time":"2013-08-31T00:00:00Z","timestamp":1377907200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Danish Association"},{"name":"Aarhus University Research Fund"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2013,11]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Bite force at different levels of clenching and the corresponding electromyographic (<jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content>) activity in jaw\u2010closing muscles were recorded in 16 healthy women before, during and after painful stimulation of the left masseter muscle. Experimental pain was induced by infusion of 5\u00b78% hypertonic saline (<jats:styled-content style=\"fixed-case\">HS<\/jats:styled-content>), and 0\u00b79% isotonic saline (<jats:styled-content style=\"fixed-case\">IS<\/jats:styled-content>) was infused as a control. <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity was recorded bilaterally from the masseter and temporalis muscles, and static bite force was assessed by pressure\u2010sensitive films (Dental Pre\u2010scale) at 5, 50 and 100% of maximal voluntary contraction (<jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content>) during each session. Visual feedback was applied by showing <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity to help the subject perform clenching at 5, 50 and 100% <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content>, respectively. <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity at 100% <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content> in left and right masseter decreased significantly during painful HS infusion (1\u00b77\u201344\u00b76%; <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00\u00b705). EMG activity at 5% and 50% <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content> was decreased during HS infusion in the painful masseter muscle (4\u00b78\u201318\u00b76%; <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00\u00b705); however, <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity in the other muscles increased significantly (18\u00b75\u2013128\u00b73%; <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00\u00b705). There was a significant increase in bite force in the molar regions at 50% <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content> during <jats:styled-content style=\"fixed-case\">HS<\/jats:styled-content> infusion and in the post\u2010infusion condition (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00\u00b705). However, there were no significant differences in the distribution of forces at 100% <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content>. In conclusion, experimental pain in the masseter muscle has an inhibitory effect on jaw muscle activity at maximal voluntary contraction, and compensatory mechanisms may influence the recruitment pattern at submaximal efforts.<\/jats:p>","DOI":"10.1111\/joor.12096","type":"journal-article","created":{"date-parts":[[2013,8,31]],"date-time":"2013-08-31T08:34:38Z","timestamp":1377938078000},"page":"826-833","source":"Crossref","is-referenced-by-count":13,"title":["Effect of experimental jaw muscle pain on <scp>EMG<\/scp> activity and bite force distribution at different level of clenching"],"prefix":"10.1111","volume":"40","author":[{"given":"A.","family":"Shimada","sequence":"first","affiliation":[{"name":"Section of Clinical Oral Physiology Department of Dentistry Aarhus University Aarhus Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Hara","sequence":"additional","affiliation":[{"name":"Treatment Center for Temporomandibular Disorders The Nippon 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