Temporomandibular joint and masticatory muscle involvement in myotonic dystrophy: A study by magnetic resonance imaging

Show simple item record

dc.contributor.author Zanoteli, E.
dc.contributor.author Yamashita, H. K.
dc.contributor.author Suzuki, H.
dc.contributor.author Oliveira, ASB
dc.contributor.author Gabbai, Alberto Alain [UNIFESP]
dc.date.accessioned 2016-01-24T12:33:28Z
dc.date.available 2016-01-24T12:33:28Z
dc.date.issued 2002-08-01
dc.identifier http://dx.doi.org/10.1067/moe.2002.124580
dc.identifier.citation Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontics. St Louis: Mosby, Inc, v. 94, n. 2, p. 262-271, 2002.
dc.identifier.issn 1079-2104
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/26941
dc.description.abstract Objective. the purpose of this stud(y) was to evaluate the masticatory muscles and the temporomandibular joint (TMJ) by magnetic resonance imaging (MRI) in myotonic dystrophy (MD) patients.Study design. MRI of the masticatory muscles and TMJ was performed in 15 MD patients, 11 male and 4 female, aged 16 to 53 years (mean, 31 years). Many of them had dental malocclusion, especially Angle class III and anterior open bite, and 3 complained of recurrent TMJ dislocation. TMJ and masticatory muscle pain was not observed, and joint sounds were noted in only I patient.Results. the analysis of MRI scans showed masticatory muscle involvement in 13 patients (86.6%). in , the involvement was moderate to intense. the main abnormalities observed were increased intramuscular tissue signal on T1 (fatty infiltration) and volumetric reduction of muscles. Regarding the TMJ, articular disk displacement was seen in only 1 patient, but abnormalities of disk shape were common. Mild bone abnormalities were frequently observed, including changes of shape and contour of bone surface, and sclerosis of bone marrow. in 4 patients the condyle moved anterior to the eminence with the mouth opened fully (condylar hyperexcursion).Conclusions. This study shows that masticatory muscles are frequently and intensively affected in MD patients. Bone changes are the most consistent abnormalities observed in the TMJ. It is possible that remodeling is caused by biomechanical changes in the jaw as a result of masticatory muscle involvement. en
dc.format.extent 262-271
dc.language.iso eng
dc.publisher Mosby, Inc
dc.relation.ispartof Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontics
dc.rights Acesso restrito
dc.title Temporomandibular joint and masticatory muscle involvement in myotonic dystrophy: A study by magnetic resonance imaging en
dc.type Artigo
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.contributor.institution Associacao Cirurgioes Dent Campinas
dc.description.affiliation Universidade Federal de São Paulo, Escola Paulista Med, Dept Neurol, UNIFESP,EPM, BR-04023900 São Paulo, Brazil
dc.description.affiliation UNIFESP, EPM, Dept Imaging Diagnost, São Paulo, Brazil
dc.description.affiliation Associacao Cirurgioes Dent Campinas, Campinas, Brazil
dc.description.affiliationUnifesp Universidade Federal de São Paulo, Escola Paulista Med, Dept Neurol, UNIFESP,EPM, BR-04023900 São Paulo, Brazil
dc.description.affiliationUnifesp UNIFESP, EPM, Dept Imaging Diagnost, São Paulo, Brazil
dc.identifier.doi 10.1067/moe.2002.124580
dc.description.source Web of Science
dc.identifier.wos WOS:000177957100022



File

File Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search


Browse

Statistics

My Account