Prevalence of Temporomandibular Joint Dysfunction (TMD) symptoms in dentistry students and its association with Temporomandibular Joint Condylar Hypermobility
Keywords:
Temporomandibular joint disorders syndrome, Joint instabilityAbstract
Temporomandibular Joint Dysfunction (TMD) is a collection of clinical conditions associated with abnormalities of the sthomatognatic system, which is related to many risk factors, among which is Condilar Hypermobility. The present study aimed to establish the prevalence of dentistry students with TMD symptoms and the association between students with TMD symptoms and carriers of Condilar Hypermobility. A total of 111 dentistry students (66 women and 45 men) were submitted to clinical evaluation of the Temporomandibular Joint and were asked to answer a questionnaire which investigated the symptoms of the Temporomandibular Joint Dysfunction. The association between students with TMD symptoms and carriers of Condilar Hypermobility was calculated by means of the Chi-square test (p£0,05). The association between TMD symptoms and genre, headache, otologic symptoms, and articular sounds was also calculated by means of the Chi-square test. Prevalence of the Temporomandibular Joint Dysfunction and Condilar Hypermobility was 29.7% and 22.5%, respectively. A higher prevalence of the Temporomandibular Joint Dysfunction could be observed in females. Among the students with TMD symptoms, articular sounds represented 57.6%, whereas headaches represented 51.5%, and otological symptoms represented 42.4%. Articular sounds were the only variable that showed a statistically significant association with TMD symptoms. It was not possible to establish a significant statistical correlation between Temporomandibular Joint Dysfunction and Condilar Hypermobility. Longitudinal studies are necessary for a better understanding of the relevance of Condylar Hypermobility in the complex dysfunction of etiopathogenesis.
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