Lateral pterygoid muscle volume and migraine in patients with temporomandibular disorders

Autor: André Luiz Ferreira Costa, Sérgio Lúcio Pereira de Castro Lopes, Adriana Dibo da Cruz, Isadora Luana Flores, Li Li Min, Thiago de Oliveira Gamba
Přispěvatelé: Universidade Estadual Paulista (Unesp), Universidade de São Paulo (USP), Universidade Estadual de Campinas (UNICAMP), Department of Specific Formation, Area of Radiology, Nova Friburgo Dental School, Fluminense Federal University, Nova Friburgo, Rio de Janeiro, Brazil.
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Imaging Science in Dentistry
PubMed
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 2233-7830
2233-7822
Popis: Made available in DSpace on 2015-12-07T15:35:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2015. Added 1 bitstream(s) on 2015-12-07T15:54:21Z : No. of bitstreams: 1 PMC4362986.pdf: 208180 bytes, checksum: 68a9080de4fa98886a47bd6b3f662e6f (MD5) 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. Department of Diagnosis and Surgery, São José dos Campos Dental School, UNESP, São Paulo, Brazil. Department of Pediatric Dentistry and Orthodontics, University of São Paulo City, UNICID, São Paulo, Brazil. Department of Oral Diagnosis, School of Dentistry, UNICAMP, Piracicaba, São Paulo, Brazil. Department of Specific Formation, Area of Radiology, Nova Friburgo Dental School, Fluminense Federal University, Nova Friburgo, Rio de Janeiro, Brazil. Laboratory of Neuroimaging, Department of Neurology, Faculty of Medical Sciences, UNICAMP, Campinas, São Paulo, Brazil. Department of Diagnosis and Surgery, São José dos Campos Dental School, UNESP, São Paulo, Brazil.
Databáze: OpenAIRE