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Assessment of thickness and function of masticatory and cervical muscles in adults with and without temporomandibular disorders

dc.creatorStrini, PJSA
dc.creatorStrini, PJSA
dc.creatorBarbosa, TD
dc.creatorGaviao, MBD
dc.date2013
dc.dateSEP
dc.date2014-07-30T13:51:11Z
dc.date2015-11-26T17:41:05Z
dc.date2014-07-30T13:51:11Z
dc.date2015-11-26T17:41:05Z
dc.date.accessioned2018-03-29T00:22:50Z
dc.date.available2018-03-29T00:22:50Z
dc.identifierArchives Of Oral Biology. Pergamon-elsevier Science Ltd, v. 58, n. 9, n. 1100, n. 1108, 2013.
dc.identifier0003-9969
dc.identifier1879-1506
dc.identifierWOS:000323356600006
dc.identifier10.1016/j.archoralbio.2013.04.006
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/55022
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/55022
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1286909
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionObjective: The aim of this study was to evaluate the maximal bite force (MBF), electromyographic (EMG) activity and thickness of the masseter, anterior part of the temporalis and sternocleidomastoid (SCM) muscles in a group of young adults with and without temporomandibular disorders (TMDs). Design: Nineteen individuals comprised the TMD group (6 males/13 females, aged 25.4 +/- 3.8 years), classified based on the Research Diagnostic Criteria for TMD (RDC/TMD), and 19 comprised the control group (6 males/13 females, aged 24.1 +/- 3.6 years). The MBF was determined with a transducer placed between the dental arches at the first molars level (N). The muscles were evaluated bilaterally at rest and during maximal voluntary clenching (MVC) by assessing EMG activity and performing ultrasonography (USG). The mean values of these measures for both sides of the mouth were used. The normality of the distributions was assessed by the Shapiro-Wilks test. Variables between groups and genders were compared using two-way factorial ANOVA test and correlated using the Spearman coefficient (alpha = 0.05). Unpaired t test was used to compare variables between TMD subgroups. Logistic regression analysis was used to identify the variables associated with the presence of TMD. Results: MBF, EMG and USG data were similar among clinical groups and among TMD subgroups. The thickness of masseter and SCM muscles in the relaxed and clenching states were significantly higher in males than females. On the other hand, the EMG of the temporalis muscle in the rest state was significantly higher in females than males. Additionally, the MBF was positively correlated with the USG characteristics of masseter and SCM muscles, as well as with the EMG activity of masseter and temporalis muscles in the TMD group. In this group, there was also a positive correlation between the thickness of the masseter muscle and its activity. On the other hand, the thickness of the SCM muscle was negatively correlated with its activity. A lower MBF was independently associated with the presence of TMD.
dc.description58
dc.description9
dc.description1100
dc.description1108
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherPergamon-elsevier Science Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationArchives Of Oral Biology
dc.relationArch. Oral Biol.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectBite force
dc.subjectTemporomandibular disorders
dc.subjectElectromyography
dc.subjectUltrasonography
dc.subjectSternocleidomastoid
dc.subjectMasticatory muscles
dc.subjectUnilateral Posterior Crossbite
dc.subjectBite Force
dc.subjectElectromyographic Activity
dc.subjectMasseter Muscle
dc.subjectCraniofacial Dimensions
dc.subjectOcclusal Factors
dc.subjectHead Posture
dc.subjectPain
dc.subjectNeck
dc.subjectHealthy
dc.titleAssessment of thickness and function of masticatory and cervical muscles in adults with and without temporomandibular disorders
dc.typeArtículos de revistas


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