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Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

The relationship between temporomandibular dysfunction and head and cervical posture

2009; UNIVERSIDADE DE SÃO PAULO; Volume: 17; Issue: 3 Linguagem: Inglês

10.1590/s1678-77572009000300014

ISSN

1678-7765

Autores

Ricardo Alves Matheus, Flávia Maria de Moraes Ramos‐Perez, Alynne Vieira de Menezes, Gláucia María Bovi Ambrosano, Francisco Haiter‐Neto, Frab Norberto Bóscolo, Solange María de Almeida,

Tópico(s)

Orthodontics and Dentofacial Orthopedics

Resumo

This study aimed to evaluate the possibility of any correlation between disc displacement and parameters used for evaluation of skull positioning in relation to the cervical spine: craniocervical angle, suboccipital space between C0-C1, cervical curvature and position of the hyoid bone in individuals with and without symptoms of temporomandibular dysfunction.The patients were evaluated following the guidelines set forth by RDC/TMD. Evaluation was performed by magnetic resonance imaging for establishment of disc positioning in the temporomandibular joints (TMJs) of 30 volunteer patients without temporomandibular dysfunction symptoms and 30 patients with symptoms. Evaluation of skull positioning in relation to the cervical spine was performed on lateral cephalograms achieved with the individual in natural head position. Data were submitted to statistical analysis by Fisher's exact test at 5% significance level. To measure the degree of reproducibility/agreements between surveys, the kappa (K) statistics was used.Significant differences were observed between C0-C1 measurement for both symptomatic (p=0.04) and asymptomatic (p=0.02). No statistical differences were observed regarding craniocervical angle, C1-C2 and hyoid bone position in relation to the TMJs with and without disc displacement. Although statistically significant difference was found in the C0-C1 space, no association between these and internal temporomandibular joint disorder can be considered.Based on the results observed in this study, no direct relationship could be determined between the presence of disc displacement and the variables assessed.

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