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Thirty healthy dental students with natural dentition and bilateral molar support, between the ages of 18 and 22, with no prior history of oro\u2010facial injury, or current or past pain in the jaw, mouth or tongue participated in the study. Tonic masseter and temporalis <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activities were recorded using surface electrodes. Subjects were instructed to passively place the tongue either on the anterior hard palate or in the floor of the mouth during swallowing and <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content>. At each tongue position, the resulting <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> was recorded. During swallowing, no significant difference in <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity was found either for the masseter (<jats:italic>P<\/jats:italic>\u2010value\u00a0=\u00a00\u00b71592) or the temporalis (<jats:italic>P<\/jats:italic>\u2010value\u00a0=\u00a00\u00b70546) muscles, regardless of the tongue position. During <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content>, there was a statistically significant difference for both the masseter (<jats:italic>P<\/jats:italic>\u2010value\u00a0=\u00a00\u00b70016) and the temporalis (<jats:italic>P<\/jats:italic>\u2010value\u00a0= 0\u00b70277) muscles with lower levels recorded with the tongue in the floor of the mouth. This study found that in normal, pain\u2010free subjects, placing the tongue in the floor of the mouth significantly reduces masticatory muscle activity during <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content>. Thus, it may be considered as a possible therapeutic option to decrease masticatory muscle activity; however, further research is needed in patients with oro\u2010facial pain.<\/jats:p>","DOI":"10.1111\/joor.12210","type":"journal-article","created":{"date-parts":[[2014,7,9]],"date-time":"2014-07-09T05:41:15Z","timestamp":1404884475000},"page":"881-889","source":"Crossref","is-referenced-by-count":14,"title":["Effect of tongue position on masseter and temporalis electromyographic activity during swallowing and maximal voluntary clenching: a cross\u2010sectional study"],"prefix":"10.1111","volume":"41","author":[{"given":"C.","family":"Vald\u00e9s","sequence":"first","affiliation":[{"name":"Restorative Dentistry and Oral Function College of Dentistry\/Universidad de los Andes Las Condes Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F.","family":"Astaburuaga","sequence":"additional","affiliation":[{"name":"Restorative Dentistry and Oral Function College of Dentistry\/Universidad de los Andes Las Condes Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D.","family":"Falace","sequence":"additional","affiliation":[{"name":"Oral Diagnosis and Oral Medicine College of Dentistry\/University of Kentucky Lexington KY USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"V.","family":"Ramirez","sequence":"additional","affiliation":[{"name":"Public Health and Epidemiology College of Dentistry\/Universidad de los Andes Las Condes Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Manns","sequence":"additional","affiliation":[{"name":"Restorative Dentistry and Oral Function College of Dentistry\/Universidad de los Andes Las Condes Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2014,7,9]]},"reference":[{"key":"e_1_2_7_2_1","first-page":"2008","volume-title":"Orofacial pain: guidelines for assessment, diagnosis, and management","author":"De Leeuw R"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1023\/B:JOBM.0000013646.04624.8f"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/bdj.2006.123"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2842.2012.02304.x"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.14219\/jada.archive.1969.0234"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/0304-3959(91)90069-A"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00844932"},{"key":"e_1_2_7_9_1","volume-title":"Orofacial pain: guidelines for assessment, diagnosis, and management","author":"De Leeuw R","year":"2013"},{"key":"e_1_2_7_10_1","first-page":"80","article-title":"Guidelines for the treatment of temporomandibular disorders","volume":"4","author":"Clark GT","year":"1990","journal-title":"J Craniomandib Disord"},{"key":"e_1_2_7_11_1","doi-asserted-by":"crossref","unstructured":"National Institutes of Health Technology Assessment Conference on Management of Temporomandibular Disorders. 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