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Jaw movement and jaw muscle (masseter, anterior temporalis, and digastric) activity were recorded during free and rate\u2010standardized chewing in eight asymptomatic participants (pain infusion group), before and at three time blocks up to 45 min after a single 0.2\u2010ml bolus infusion of 5% hypertonic saline into the right masseter muscle. The same procedure, without infusion, was performed in another eight participants (control group). There were no significant main effects of group on jaw movement and muscle activity, suggesting that there were no persistent post\u2010pain effects on chewing. Across groups, repetitions of free and unstandardized chewing movements were associated with progressive increases in velocity and amplitude of jaw movement and masseter and temporalis electromyographic (<jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content>) activity. These findings suggest that factors unrelated to pain, such as practice effects, may be playing a role in the changes in jaw movement and jaw\u2010muscle activity observed after resolution of an acute episode of jaw\u2010muscle pain.<\/jats:p>","DOI":"10.1111\/eos.12321","type":"journal-article","created":{"date-parts":[[2016,12,24]],"date-time":"2016-12-24T16:14:14Z","timestamp":1482596054000},"page":"34-43","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Effect of a brief episode of experimental muscle pain on jaw movement and jaw\u2010muscle activity during chewing"],"prefix":"10.1111","volume":"125","author":[{"given":"Kyoko","family":"Inamoto","sequence":"first","affiliation":[{"name":"Jaw Function and Orofacial Pain Research Unit Faculty of Dentistry Westmead Centre for Oral Health University of Sydney Westmead Australia"},{"name":"Department of Endodontics School of Dentistry Aichi Gakuin University Nagoya 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