Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial

Abstract Objectives: The esthetic and functional results of orthognathic surgery of severe dentofacial deformities are predictable, however there are differences regarding the effects on stomatognathic system. The aim was to investigate the effects of orofacial myofunctional therapy (OMT) on the mas...

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Autores: Prado, Daniela Galvão de Almeida, Berretin-Felix, Giédre, Migliorucci, Renata Resina, Bueno, Mariana da Rocha Salles, Rosa, Raquel Rodrigues, Polizel, Marcela, Teixeira, Isadora Ferraz, Gavião, Maria Beatriz Duarte
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:Brasil
Recursos:Universidade de São Paulo (USP)
Repositorio:Journal of applied oral science (Online)
Idioma:inglés
OAI Identifier:oai:revistas.usp.br:article/142966
Acesso em linha:https://www.revistas.usp.br/jaos/article/view/142966
Access Level:acceso abierto
Palavra-chave:Dentofacial deformities
Orthognathic surgery
Myofunctional therapy
Mastication
Electromyography
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spelling Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trialDentofacial deformitiesOrthognathic surgeryMyofunctional therapyMasticationElectromyographyAbstract Objectives: The esthetic and functional results of orthognathic surgery of severe dentofacial deformities are predictable, however there are differences regarding the effects on stomatognathic system. The aim was to investigate the effects of orofacial myofunctional therapy (OMT) on the masticatory function in individuals with dentofacial deformity submitted to orthognathic surgery (OGS). Material and Methods: Forty-eight individuals (18-40 years) were evaluated, 14 undergoing OMT (treated group-TG), 10 without this treatment (untreated group-UTG) and 24 in a control group with normal occlusion; for clinical aspects the data of an individual was missed (n=46). Chewing was performed using the Expanded protocol of orofacial myofunctional evaluation with scores (OMES-E). Muscle tone and mobility were also analyzed before (P0), three (P1) and six months (P2) after OGS. Surface electromyography of the masseter and temporalis muscles was performed, considering the parameters amplitude and duration of act and cycle, and the number of masticatory cycles. The OMT consisted of ten therapeutic sessions along the postoperative period. The results were compared using parametric and non-parametric tests. Results: TG showed higher scores in P1 and P2 than P0; for the masticatory type the scores in P2 were significantly higher than P0. In addition, the proportion of individuals with adequate tone of lower lip and adequate tongue mobility for TG increased significantly from P1 and P2 in relation to P0. The EMG results showed a decrease in act and cycle duration in P2 in relation to P0 and P1 for the TG; furthermore the values were close to controls. An increase in the number of cycles from P0 to P2 was also observed, indicating faster chewing, which may be attributed to an improvement of balanced occlusion associated with OMT. Conclusion: There were positive effects of OMT on the clinical and electromyography aspects of chewing in individual submitted to orthognathic surgery.Universidade de São Paulo. Faculdade de Odontologia de Bauru2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/14296610.1590/1678-7757-2017-0164Journal of Applied Oral Science; Vol. 26 (2018); e20170164Journal of Applied Oral Science; Vol. 26 (2018); e20170164Journal of Applied Oral Science; v. 26 (2018); e201701641678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/142966/137828Copyright (c) 2018 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessPrado, Daniela Galvão de AlmeidaBerretin-Felix, Giédre Migliorucci, Renata ResinaBueno, Mariana da Rocha SallesRosa, Raquel RodriguesPolizel, Marcela Teixeira, Isadora FerrazGavião, Maria Beatriz Duarte2018-03-20T12:30:07Zoai:revistas.usp.br:article/142966Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2018-03-20T12:30:07Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial
title Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial
spellingShingle Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial
Prado, Daniela Galvão de Almeida
Dentofacial deformities
Orthognathic surgery
Myofunctional therapy
Mastication
Electromyography
title_short Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial
title_full Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial
title_fullStr Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial
title_full_unstemmed Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial
title_sort Effects of orofacial myofunctional therapy on masticatory function in individuals submitted to orthognathic surgery: a randomized trial
dc.creator.none.fl_str_mv Prado, Daniela Galvão de Almeida
Berretin-Felix, Giédre
Migliorucci, Renata Resina
Bueno, Mariana da Rocha Salles
Rosa, Raquel Rodrigues
Polizel, Marcela
Teixeira, Isadora Ferraz
Gavião, Maria Beatriz Duarte
author Prado, Daniela Galvão de Almeida
author_facet Prado, Daniela Galvão de Almeida
Berretin-Felix, Giédre
Migliorucci, Renata Resina
Bueno, Mariana da Rocha Salles
Rosa, Raquel Rodrigues
Polizel, Marcela
Teixeira, Isadora Ferraz
Gavião, Maria Beatriz Duarte
author_role author
author2 Berretin-Felix, Giédre
Migliorucci, Renata Resina
Bueno, Mariana da Rocha Salles
Rosa, Raquel Rodrigues
Polizel, Marcela
Teixeira, Isadora Ferraz
Gavião, Maria Beatriz Duarte
author2_role author
author
author
author
author
author
author
dc.subject.por.fl_str_mv Dentofacial deformities
Orthognathic surgery
Myofunctional therapy
Mastication
Electromyography
topic Dentofacial deformities
Orthognathic surgery
Myofunctional therapy
Mastication
Electromyography
description Abstract Objectives: The esthetic and functional results of orthognathic surgery of severe dentofacial deformities are predictable, however there are differences regarding the effects on stomatognathic system. The aim was to investigate the effects of orofacial myofunctional therapy (OMT) on the masticatory function in individuals with dentofacial deformity submitted to orthognathic surgery (OGS). Material and Methods: Forty-eight individuals (18-40 years) were evaluated, 14 undergoing OMT (treated group-TG), 10 without this treatment (untreated group-UTG) and 24 in a control group with normal occlusion; for clinical aspects the data of an individual was missed (n=46). Chewing was performed using the Expanded protocol of orofacial myofunctional evaluation with scores (OMES-E). Muscle tone and mobility were also analyzed before (P0), three (P1) and six months (P2) after OGS. Surface electromyography of the masseter and temporalis muscles was performed, considering the parameters amplitude and duration of act and cycle, and the number of masticatory cycles. The OMT consisted of ten therapeutic sessions along the postoperative period. The results were compared using parametric and non-parametric tests. Results: TG showed higher scores in P1 and P2 than P0; for the masticatory type the scores in P2 were significantly higher than P0. In addition, the proportion of individuals with adequate tone of lower lip and adequate tongue mobility for TG increased significantly from P1 and P2 in relation to P0. The EMG results showed a decrease in act and cycle duration in P2 in relation to P0 and P1 for the TG; furthermore the values were close to controls. An increase in the number of cycles from P0 to P2 was also observed, indicating faster chewing, which may be attributed to an improvement of balanced occlusion associated with OMT. Conclusion: There were positive effects of OMT on the clinical and electromyography aspects of chewing in individual submitted to orthognathic surgery.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/jaos/article/view/142966
10.1590/1678-7757-2017-0164
url https://www.revistas.usp.br/jaos/article/view/142966
identifier_str_mv 10.1590/1678-7757-2017-0164
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/jaos/article/view/142966/137828
dc.rights.driver.fl_str_mv Copyright (c) 2018 Journal of Applied Oral Science
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Journal of Applied Oral Science
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Odontologia de Bauru
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Odontologia de Bauru
dc.source.none.fl_str_mv Journal of Applied Oral Science; Vol. 26 (2018); e20170164
Journal of Applied Oral Science; Vol. 26 (2018); e20170164
Journal of Applied Oral Science; v. 26 (2018); e20170164
1678-7765
1678-7757
reponame:Journal of applied oral science (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Journal of applied oral science (Online)
collection Journal of applied oral science (Online)
repository.name.fl_str_mv Journal of applied oral science (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||jaos@usp.br
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score 15.228081

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