{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T23:30:23Z","timestamp":1777419023324,"version":"3.51.4"},"reference-count":34,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2013,7,16]],"date-time":"2013-07-16T00:00:00Z","timestamp":1373932800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100006070","name":"Universidad de los Andes","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100006070","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2013,9]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>The purpose of this study was to: (a) compare the tonic electromyographic (<jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content>) activity of the temporalis and masseter muscles between two tongue positions, (b) compare the vertical dimension (<jats:styled-content style=\"fixed-case\">VD<\/jats:styled-content>) resulting from each tongue position and (c) determine the influence of the <jats:styled-content style=\"fixed-case\">VD<\/jats:styled-content> on the tonic <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity for each tongue position. Thirty\u2010three healthy dental students with natural dentition and bilateral molar support, between the ages of 18 and 22\u00a0years, with no prior history of oro\u2010facial injury, or current or past pain in the jaw, mouth, or tongue participated in the study. Tonic masseteric 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. At each tongue position, the resulting <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">VD<\/jats:styled-content> were recorded. No significant difference in <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity was found for either the masseter (<jats:italic>P<\/jats:italic>\u2010value\u00a0=\u00a00\u00b75376) or temporalis muscle (<jats:italic>P<\/jats:italic>\u2010value\u00a0=\u00a00\u00b77410), between the two tongue positions. However, there was a significant difference in the <jats:styled-content style=\"fixed-case\">VD<\/jats:styled-content> resulting from the two different tongue positions, being greater with the tongue placed in the floor of the mouth. There was no statistically significant correlation between <jats:styled-content style=\"fixed-case\">VD<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity for both tongue positions. In spite of the lack of difference in the effect of both tongue positions on the masseteric and temporalis <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity, an increment of the <jats:styled-content style=\"fixed-case\">VD<\/jats:styled-content> was registered for the floor of mouth\u2013tongue position. However, <jats:styled-content style=\"fixed-case\">VD<\/jats:styled-content> was not correlated with <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> activity for both tongue positions.<\/jats:p>","DOI":"10.1111\/joor.12080","type":"journal-article","created":{"date-parts":[[2013,7,16]],"date-time":"2013-07-16T09:48:45Z","timestamp":1373968125000},"page":"650-656","source":"Crossref","is-referenced-by-count":8,"title":["The effect of tongue position and resulting vertical dimension on masticatory muscle activity. A cross\u2010sectional study"],"prefix":"10.1111","volume":"40","author":[{"given":"C.","family":"Vald\u00e9s","sequence":"first","affiliation":[{"name":"Restorative Dentistry and Oral Function College of Dentistry\/Facultad de Odontolog\u00eda Universidad de los Andes Santiago Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Guti\u00e9rrez","sequence":"additional","affiliation":[{"name":"Restorative Dentistry and Oral Function College of Dentistry\/Facultad de Odontolog\u00eda Universidad de los Andes Santiago 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 Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F.","family":"Astaburuaga","sequence":"additional","affiliation":[{"name":"Restorative Dentistry and Oral Function College of Dentistry\/Facultad de Odontolog\u00eda Universidad de los Andes Santiago Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Manns","sequence":"additional","affiliation":[{"name":"Restorative Dentistry and Oral Function College of Dentistry\/Facultad de Odontolog\u00eda Universidad de los Andes Santiago Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,7,16]]},"reference":[{"key":"e_1_2_7_2_1","volume-title":"Orofacial Pain: Guidelines for Assessment, Diagnosis, and Management","author":"Leeuw R","year":"2008"},{"key":"e_1_2_7_3_1","volume-title":"Management of Temporomandibular Disorders and Occlusion","author":"Okeson JP","year":"2012"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1023\/B:JOBM.0000013646.04624.8f"},{"key":"e_1_2_7_5_1","volume-title":"TMJ and craniofacial pain : diagnosis and management","author":"Fricton 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