Biomechanics of the temporomandibular joint in singers



The practice of an art performance activity like singing requires technical, physical and physiological skills that determine the singers and his musical performance productivity. Singing may develop some pathologies, namely at the temporomandibular joint (TMJ), in the professionals who dedicate themselves to this art.


Determine if singing leads to changes in the TMJs biomechanics, like temporomandibular disorders and/or condilar hypermobility.


The population of this study was made by 36 individuals, 18 professional singers (study group) and 18 from de control group. The TMD diagnostic was made through the Research Diagnostic Criteria for Temporomandibular Disorders. The condilar hypermobility diagnostic was made through a clinical exam, an electrosonography and a radiographic study of the TMJ. Statistical analysis was performed using techniques that were considered most appropriate for the variables involved, including the chi-square, McNemar and correlation.


In the study group, 27.8% of the individuals presented some kind of TMD, while in the control group that percentage was 16.7%. The articular hypermobility had a 50% frequency on the control group and 77.8% on the study group. No statistically significant differences were found (P> .05).


It can be concluded in this study that singing, on a professional level, does not constitute a risk factor for the development of TMDs and/or articular hypermobility.


Keywords: Joint instability, Temporomandibular joint, Temporomandibular joint disorders
Authors: Fabiana Almeida, João Carlos Pinho, Daniela Coimbra, Miguel Pais Clemente, Nuno Santos

Year 2013
Type Journal Article with peer review
Publication Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial, 54(3)
Pages 131–136
Language English