Journal Article

Can temporomandibular dysfunction signs be predicted by early morphological or functional variables?

Riitta Pahkala and Mari Qvarnström

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 26, issue 4, pages 367-373
Published in print August 2004 | ISSN: 0141-5387
Published online August 2004 | e-ISSN: 1460-2210 | DOI:
Can temporomandibular dysfunction signs be predicted by early morphological or functional variables?

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The aim of the present study was to establish whether the early signs of various orofacial dysfunctions, malocclusions, or occlusal interferences can predict the development of temporomandibular dysfunction (TMD) in young adults. Forty-eight subjects referred for speech therapy and 49 controls participated in all four stages of this longitudinal study. The subjects were examined at the ages of 7, 10, 15, and 19 years. The phoniatrician diagnosed errors in place of articulation and problems in the movement and co-ordination of the speech articulators. Occlusion, TMD signs (palpatory tenderness of the masticatory muscles, and of temporomandibular joints (TMJ), jaw deviation on opening, and clicking), mandibular movement capacity and occlusal interferences were registered by the orthodontist. Multiple logistic regression models were applied in order to evaluate whether single signs of TMD at the age of 19 years were related to previous/present malocclusions or interferences, to misarticulations of speech, problems in oral motor skills, or other signs of TMD. The effect of gender was also considered.

The results showed that excessive overjet was the only variable which seemed to consistently increase the risk of TMD. In addition, girls seemed to be more prone to the development of TMD than boys. Although, during growth, there were both local and central factors associated occasionally with TMD development, the predictive value of those variables in the estimation of the individual risk of TMD was rather small.

Journal Article.  0 words. 

Subjects: Restorative Dentistry and Orthodontics

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