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. 2015 Jul;33(3):211-6.
doi: 10.1179/2151090314Y.0000000015. Epub 2014 Jul 16.

The role of occlusal factors on the occurrence of temporomandibular disorders

Stéphanie Trajano de Sousa, Victor Villaça Cardoso de Mello, Bruno Gama Magalhães, Mariana Pacheco Lima de Assis Morais, Marcia Maria Vendiciano Barbosa Vasconcelos, Arnaldo de França Caldas Junior, Simone Guimarães Farias Gomes

The role of occlusal factors on the occurrence of temporomandibular disorders

Stéphanie Trajano de Sousa et al. Cranio. 2015 Jul.

Abstract

Aims: The aim of this study was to investigate the relationship between occlusal factors and temporomandibular disorders (TMD).

Methodology: One hundred patients were selected among those who sought medical or dental care in public practice in Recife, Brazil. The presence of malocclusions and absence of five or more posterior teeth were evaluated by the clinical exam. TMD diagnosis was given using Research Diagnostic Criteria (RDC/TMD). Statistics were carried out using Fisher and Mann-Whitney methods with 5% significance level, as well as multiple logistic regression analysis.

Results: The sample was mainly comprised of women (83%), individuals over 30 years old (57%) and singles (53%). The percentage of TMD and malocclusion in total sample was 42% and 50%, respectively, while in TMD subjects, malocclusion was present in 38.1%. There was no association between TMD and the occlusal factors studied.

Conclusion: It can be concluded that malocclusion and loss of five or more posterior teeth does not contribute to TMD.

Keywords: Dental occlusion,; Malocclusion,; Temporomandibular joint dysfunction syndrome,; Tooth loss.

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