Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity

Detalhes bibliográficos
Autor(a) principal: Mazzetto,Marcelo Oliveira
Data de Publicação: 2014
Outros Autores: Paiva,Guiovaldo, Magri,Laís Valencise, Melchior,Melissa de Oliveira, Rodrigues,Carolina Almeida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Dor
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-00132014000200091
Resumo: BACKGROUND AND OBJECTIVES:Understanding the importance of surface electromyography as a complementary method to understand the myofunctional status of the stomatognathic system, this study aimed at analyzing the frequency of altered and normal electromyographic indices in a sample of subjects with temporomandibular disorders, in addition to their relation with pain complaint.METHODS:Participated in the study 44 individuals with temporomandibular disorder signs and symptoms (11 males and 33 females), with mean age of 39 years, who were submitted to surface electromyography. Pain intensity was measured by the visual analog scale. Total Asymmetry Index (AStotal), Masseter Asymmetry Index (ASMM), Temporal Asymmetry Index (ASTA), Activation Index (ACtotal) and Torque Index (TOtotal) were calculated. Correlation between pain intensity and electromyographic indices was checked by Pearson correlation test and sample characterization with regard to investigated indices was done by descriptive analysis.RESULTS:Means of all indices were within previously established normality patterns. The frequency of altered electromyographic indices in our sample was high (ASMM=68%; ASTA=64%; TOtotal=64%; AStotal=55%). With regard to ACtotal, there has been predominance of masseter activity as compared to temporal activity, both for normal and altered values. Among individuals with altered indices, the left side had superior activity. No correlation was found between pain intensity and the level of electromyographic indices alterations (p>0.05).CONCLUSION:The frequency of electromyographic indices alterations in individuals with temporomandibular disorders is high, pointing to the possible presence of myofunctional disorders of the stomatognathic system. These indices have no direct relation with pain complaint but show muscular activity imbalance, which may not be useful to diagnose pain, but may help the correct referral to relevant muscle therapies.
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spelling Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensityElectromyographyMasticatory musclesOrofacial painTemporomandibular joint disorder syndromeBACKGROUND AND OBJECTIVES:Understanding the importance of surface electromyography as a complementary method to understand the myofunctional status of the stomatognathic system, this study aimed at analyzing the frequency of altered and normal electromyographic indices in a sample of subjects with temporomandibular disorders, in addition to their relation with pain complaint.METHODS:Participated in the study 44 individuals with temporomandibular disorder signs and symptoms (11 males and 33 females), with mean age of 39 years, who were submitted to surface electromyography. Pain intensity was measured by the visual analog scale. Total Asymmetry Index (AStotal), Masseter Asymmetry Index (ASMM), Temporal Asymmetry Index (ASTA), Activation Index (ACtotal) and Torque Index (TOtotal) were calculated. Correlation between pain intensity and electromyographic indices was checked by Pearson correlation test and sample characterization with regard to investigated indices was done by descriptive analysis.RESULTS:Means of all indices were within previously established normality patterns. The frequency of altered electromyographic indices in our sample was high (ASMM=68%; ASTA=64%; TOtotal=64%; AStotal=55%). With regard to ACtotal, there has been predominance of masseter activity as compared to temporal activity, both for normal and altered values. Among individuals with altered indices, the left side had superior activity. No correlation was found between pain intensity and the level of electromyographic indices alterations (p>0.05).CONCLUSION:The frequency of electromyographic indices alterations in individuals with temporomandibular disorders is high, pointing to the possible presence of myofunctional disorders of the stomatognathic system. These indices have no direct relation with pain complaint but show muscular activity imbalance, which may not be useful to diagnose pain, but may help the correct referral to relevant muscle therapies.Sociedade Brasileira para o Estudo da Dor2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-00132014000200091Revista Dor v.15 n.2 2014reponame:Revista Dorinstname:Sociedade Brasileira para o Estudo da Dor (SBED)instacron:SBED10.5935/1806-0013.20140026info:eu-repo/semantics/openAccessMazzetto,Marcelo OliveiraPaiva,GuiovaldoMagri,Laís ValenciseMelchior,Melissa de OliveiraRodrigues,Carolina Almeidaeng2015-09-25T00:00:00Zoai:scielo:S1806-00132014000200091Revistahttps://www.scielo.br/j/rdor/ONGhttps://old.scielo.br/oai/scielo-oai.phpdor@dor.org.br||dor@dor.org.br2317-63931806-0013opendoar:2015-09-25T00:00Revista Dor - Sociedade Brasileira para o Estudo da Dor (SBED)false
dc.title.none.fl_str_mv Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity
title Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity
spellingShingle Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity
Mazzetto,Marcelo Oliveira
Electromyography
Masticatory muscles
Orofacial pain
Temporomandibular joint disorder syndrome
title_short Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity
title_full Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity
title_fullStr Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity
title_full_unstemmed Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity
title_sort Frequency of electromyographic indices alterations in temporomandibular disorders and their correlation with pain intensity
author Mazzetto,Marcelo Oliveira
author_facet Mazzetto,Marcelo Oliveira
Paiva,Guiovaldo
Magri,Laís Valencise
Melchior,Melissa de Oliveira
Rodrigues,Carolina Almeida
author_role author
author2 Paiva,Guiovaldo
Magri,Laís Valencise
Melchior,Melissa de Oliveira
Rodrigues,Carolina Almeida
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Mazzetto,Marcelo Oliveira
Paiva,Guiovaldo
Magri,Laís Valencise
Melchior,Melissa de Oliveira
Rodrigues,Carolina Almeida
dc.subject.por.fl_str_mv Electromyography
Masticatory muscles
Orofacial pain
Temporomandibular joint disorder syndrome
topic Electromyography
Masticatory muscles
Orofacial pain
Temporomandibular joint disorder syndrome
description BACKGROUND AND OBJECTIVES:Understanding the importance of surface electromyography as a complementary method to understand the myofunctional status of the stomatognathic system, this study aimed at analyzing the frequency of altered and normal electromyographic indices in a sample of subjects with temporomandibular disorders, in addition to their relation with pain complaint.METHODS:Participated in the study 44 individuals with temporomandibular disorder signs and symptoms (11 males and 33 females), with mean age of 39 years, who were submitted to surface electromyography. Pain intensity was measured by the visual analog scale. Total Asymmetry Index (AStotal), Masseter Asymmetry Index (ASMM), Temporal Asymmetry Index (ASTA), Activation Index (ACtotal) and Torque Index (TOtotal) were calculated. Correlation between pain intensity and electromyographic indices was checked by Pearson correlation test and sample characterization with regard to investigated indices was done by descriptive analysis.RESULTS:Means of all indices were within previously established normality patterns. The frequency of altered electromyographic indices in our sample was high (ASMM=68%; ASTA=64%; TOtotal=64%; AStotal=55%). With regard to ACtotal, there has been predominance of masseter activity as compared to temporal activity, both for normal and altered values. Among individuals with altered indices, the left side had superior activity. No correlation was found between pain intensity and the level of electromyographic indices alterations (p>0.05).CONCLUSION:The frequency of electromyographic indices alterations in individuals with temporomandibular disorders is high, pointing to the possible presence of myofunctional disorders of the stomatognathic system. These indices have no direct relation with pain complaint but show muscular activity imbalance, which may not be useful to diagnose pain, but may help the correct referral to relevant muscle therapies.
publishDate 2014
dc.date.none.fl_str_mv 2014-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-00132014000200091
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-00132014000200091
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/1806-0013.20140026
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Sociedade Brasileira para o Estudo da Dor
publisher.none.fl_str_mv Sociedade Brasileira para o Estudo da Dor
dc.source.none.fl_str_mv Revista Dor v.15 n.2 2014
reponame:Revista Dor
instname:Sociedade Brasileira para o Estudo da Dor (SBED)
instacron:SBED
instname_str Sociedade Brasileira para o Estudo da Dor (SBED)
instacron_str SBED
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reponame_str Revista Dor
collection Revista Dor
repository.name.fl_str_mv Revista Dor - Sociedade Brasileira para o Estudo da Dor (SBED)
repository.mail.fl_str_mv dor@dor.org.br||dor@dor.org.br
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