Lateral pterygoid muscle volume and migraine in patients with temporomandibular disorders


Autoria(s): Lopes, Sérgio Lúcio Pereira de Castro; Costa, André Luiz Ferreira; Gamba, Thiago de Oliveira; Flores, Isadora Luana; Cruz, Adriana Dibo; Min, Li Li
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

07/12/2015

07/12/2015

2015

Resumo

Lateral pterygoid muscle (LPM) plays an important role in jaw movement and has been implicated in Temporomandibular disorders (TMDs). Migraine has been described as a common symptom in patients with TMDs and may be related to muscle hyperactivity. This study aimed to compare LPM volume in individuals with and without migraine, using segmentation of the LPM in magnetic resonance (MR) imaging of the TMJ. Twenty patients with migraine and 20 volunteers without migraine underwent a clinical examination of the TMJ, according to the Research Diagnostic Criteria for TMDs. MR imaging was performed and the LPM was segmented using the ITK-SNAP 1.4.1 software, which calculates the volume of each segmented structure in voxels per cubic millimeter. The chi-squared test and the Fisher's exact test were used to relate the TMD variables obtained from the MR images and clinical examinations to the presence of migraine. Logistic binary regression was used to determine the importance of each factor for predicting the presence of a migraine headache. Patients with TMDs and migraine tended to have hypertrophy of the LPM (58.7%). In addition, abnormal mandibular movements (61.2%) and disc displacement (70.0%) were found to be the most common signs in patients with TMDs and migraine. In patients with TMDs and simultaneous migraine, the LPM tends to be hypertrophic. LPM segmentation on MR imaging may be an alternative method to study this muscle in such patients because the hypertrophic LPM is not always palpable.

Formato

1-5

Identificador

http://dx.doi.org/10.5624/isd.2015.45.1.1

Imaging Science In Dentistry, v. 45, n. 1, p. 1-5, 2015.

2233-7822

http://hdl.handle.net/11449/131435

10.5624/isd.2015.45.1.1

PMC4362986.pdf

25793177

PMC4362986

Idioma(s)

eng

Publicador

Imaging Science In Dentistry

Relação

Imaging Science In Dentistry

Direitos

openAccess

Palavras-Chave #Magnetic resonance imaging #Migraine disorders #Pterygoid muscles #Temporomandibular joint disorders
Tipo

info:eu-repo/semantics/article