Clinical and radiographic study of the morphology of the stylohyoid complex in patients with Temporomandibular Disorders and Orofacial Pain. / Estudo clínico e radiográfico dos aspectos morfológicos da cadeia estilo-hióidea em sujeitos com disfunção temporomandibular e dor orofacial

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

25/03/2011

RESUMO

The relationship between temporomandibular disorders and Eagle\ s syndrome occurs due to the similarity of symptoms. The knowledge gained about the Eagle\ s syndrome shows that its symptoms can be very easily confused with other types of craniomandibular disorders and numerous other diseases found in regions of the skull, face and neck. The lack of informations about the Eagle\ s syndrome and the morphological alterations in the stylohyoid complex may come to determine erroneous treatments in patients with the syndrome. The aim of this study was to find a possible correlation between the presence of TMD and elongation of the styloid process and to examine the possible association between mandibular bone quality and calcification of the stylohyoid complex. Therefore, it analyzed 50 patients with TMD, confirmed from the RDC / TMD. Clinical examination was made and carried out a questionnaire aimed at the Eagle syndrome. Was also performed radiographic documentation of each patient, consisting of: digital panoramic radiograph, lateral cephalometric digital radiography, anteroposterior digital radiographs and digital transfacial radiographs. For the analysis of radiographs were used computational Radiocef software (Radiomemory, Belo Horizonte, Brazil), being performed by specific analysis cephalometric tracing, and linear and angular measurements of the styloid process. Panoramic radiographs were made in bilateral measurements of the length of the styloid process and performed the morphological classification of the stylohyoid chain (Langlais, 1986). In cephalometric radiographs were performed measurements of length and angulation of the styloid process earlier. Radiographs anteroposterior measurements were taken of the bilateral medial angle of the styloid process. And radiographs transfacials the assessments were made in ATMs. Each radiograph was traced and measured three times with intervals of one month between the measurements and the averages were then analyzed in order to spread the error between the measurements. Was accomplished through the statistical program Biostat 4.0 and Pearson test (p=0.001). As a result, we found an incidence of 76% elongation / mineralization of the styloid process in the sample. There was a correlation between the bilateral measures taken in panoramic radiographs (p<0.001) and also for measures of length of the styloid process carried out in different panoramic radiographs and lateral cephalometric (p<0.001). There was no significant correlation between measures of medial angulation performed bilaterally (p=0.0011). No positive association was found between the measures of length, angulation of the styloid process and symptoms. It was concluded that there is prevalence of elongated styloid process in patients with TMD. Although no relationship was found between measurements at stylohyoid chain with symptoms of headache, orofacial pain, tinnitus and vertigo.

ASSUNTO(S)

disfunção temporomandibular dor orofacial eagle syndrome índice cortical orofacial pain processo estilóide síndrome de eagle styloid process temporomandibular disorders cortical index calcificação calcification

ACESSO AO ARTIGO

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