Evaluation of the lateral pterygoid muscle using magnetic resonance imaging

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dc.contributor.authorD'Ippolito, S. M.
dc.contributor.authorWolosker, Angela Maria Borri [UNIFESP]
dc.contributor.authorD'Ippolito, Giuseppe [UNIFESP]
dc.contributor.authorSouza, B. Herbert de [UNIFESP]
dc.contributor.authorFenyo-Pereira, M.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T14:05:42Z
dc.date.available2016-01-24T14:05:42Z
dc.date.issued2010-12-01
dc.description.abstractObjectives: the aims of this study were to evaluate the visibility of the lateral pterygoid muscle (LPM) in temporomandibular joint (TMJ) images obtained by MRI, using different projections and to compare image findings with clinical symptoms of patients with and without temporomandibular disorders (TMD).Methods: in this study, LPM images of 50 participants with and without TMDs were investigated by MRI. the images of the LPM in different projections of 100 TMJs from 35 participants (70 TMJs) with and 15 participants (30 TMJs) without clinical signs and symptoms of TMD were visible and analysed.Results: the oblique sagittal and axial images of the TMJ clearly showed the LPM. Hypertrophy (1.45%), atrophy (2.85%) and contracture (2.85%) were the abnormalities found in the LPM. TMD signs, such as hypermobility (11.4%), hypomobility (12.9%) and disc displacement (20.0%), could be seen in TMJ images. Related clinical symptoms, such as pain (71.4%), articular sounds (30.4%), bruxism (25.7%) and headache (22.9%), were observed.Conclusions: Patients with TMD can present with alterations in the LPM thickness. Patients without TMD also showed alterations, such as atrophy and contracture, in TMJ images. Recognition of alterations in the LPM will improve our understanding of clinical symptoms and pathophysiology of TMD, and may lead to a more specific diagnosis of these disorders. Dentomaxillofacial Radiology (2010) 39, 494-500. doi: 10.1259/dmfr/80928433en
dc.description.affiliationUniv São Paulo, Fac Dent, Dept Oral Diag, BR-09500900 São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Imaging Diag, São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Fac Dent, Dept Stomatol, Sect Radiol, BR-09500900 São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Imaging Diag, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent494-500
dc.identifierhttp://dx.doi.org/10.1259/dmfr/80928433
dc.identifier.citationDentomaxillofacial Radiology. London: British Inst Radiology, v. 39, n. 8, p. 494-500, 2010.
dc.identifier.doi10.1259/dmfr/80928433
dc.identifier.issn0250-832X
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/33098
dc.identifier.wosWOS:000283994800005
dc.language.isoeng
dc.publisherBritish Inst Radiology
dc.relation.ispartofDentomaxillofacial Radiology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectlateral pterygoid muscleen
dc.subjectmagnetic resonance imagingen
dc.subjecttemporomandibular jointen
dc.subjecttemporomandibular disordersen
dc.titleEvaluation of the lateral pterygoid muscle using magnetic resonance imagingen
dc.typeinfo:eu-repo/semantics/article
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