Prevalence of the Third Head of the Lateral Pterygoid Muscle: A Magnetic Resonance Image Study

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dc.contributor.authorPompei Filho, Horacio
dc.contributor.authorGuimaraes, Antonio Sergio [UNIFESP]
dc.contributor.authorGaldames, Ivan Claudio Suazo [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionCtr Posgrad CPO Sao Leopoldo Mandic
dc.contributor.institutionUniv Talca
dc.date.accessioned2018-06-15T17:44:26Z
dc.date.available2018-06-15T17:44:26Z
dc.date.issued2009-12-01
dc.description.abstractThe lateral pterygoid muscle (LPM) is important in the physiology and dysfunction of the temporomandibular joint (TMJ), which has described the presence of a third head in the lateral pterygoid muscle (THLPM). The purpose of this study was to evaluate the prevalence of THLPM and its relationship with the TMJ disc through magnetic resonance imaging (MRI). It was evaluated 178 MRI of the TMJ of healthy individuals, in images that presented THLPM, and these were defined and measured at the surface inserted into the disc. The prevalence of THLPM was 20.22% (n = 36). Insertion of THLPM was made entirely on the TMJ disc, the average area of insertion was 4.14mm (SD 1.35) in women and 4.67 (SD 2.68) in men, but these differences were not significant. We concluded that the LPM has a complex structure, and that a THLPM could contribute in the development of TMJ disc function alterations and anterior disc displacement.en
dc.description.affiliationUniv Fed Sao Paulo, Inst Cabeca, BR-04023900 Sao Paulo, Brazil
dc.description.affiliationCtr Posgrad CPO Sao Leopoldo Mandic, Campinas, SP, Brazil
dc.description.affiliationUniv Talca, Dept Anat, Talca, Chile
dc.description.affiliationUnifespUniv Fed Sao Paulo, Inst Cabeca, BR-04023900 Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent1043-1046
dc.identifierhttp://dx.doi.org/10.4067/S0717-95022009000400014
dc.identifier.citationInternational Journal Of Morphology. Temuco: Soc Chilena Anatomia, v. 27, n. 4, p. 1043-1046, 2009.
dc.identifier.doi10.4067/S0717-95022009000400014
dc.identifier.fileS0717-95022009000400014.pdf
dc.identifier.issn0717-9502
dc.identifier.scieloS0717-95022009000400014
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/44072
dc.identifier.wosWOS:000279048100014
dc.language.isoeng
dc.publisherSoc Chilena Anatomia
dc.relation.ispartofInternational Journal Of Morphology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectLateral pterygoid muscleen
dc.subjectTemporomandibular jointen
dc.subjectArticular discen
dc.subjectTemporomandibular dysfunctionen
dc.titlePrevalence of the Third Head of the Lateral Pterygoid Muscle: A Magnetic Resonance Image Studyen
dc.title.alternativePrevalencia de la Tercera Cabeza del Músculo Pterigoideo Lateral: Estudio con Imágenes de Resonancia Magnéticaes
dc.typeinfo:eu-repo/semantics/article
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