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. 2011 Jul-Aug;77(4):418-425.
doi: 10.1590/S1808-86942011000400003.

Temporomandibular disorder and generalized joint hypermobility: application of diagnostic criteria

[Article in English, Portuguese]
Fernanda Pasinato  1 , Juliana Alves Souza  1 , Eliane Castilhos Rodrigues Corrêa  2 , Ana Maria Toniolo da Silva  3
Affiliations

Temporomandibular disorder and generalized joint hypermobility: application of diagnostic criteria

[Article in English, Portuguese]
Fernanda Pasinato et al. Braz J Otorhinolaryngol. 2011 Jul-Aug.

Abstract

Generalized joint hypermobility (GJH) has been considered a predisposing factor for the development of temporomandibular disorder (TMD).

Aim: To evaluate clinical and psychosocial aspects in individuals diagnosed with TMD with or without GJH.

Materials and methods: Clinical and experimental study, which enrolled 34 women, from 18 to 35 years of age with TMD diagnosed by RDC/TMD. The GJH was assessed by the Beighton score and volunteers were broken down into 2 groups: with GJH (n = 22) and without GJH (n = 12).

Results: We found a high percentage of GJH (64. 71%). All participants had myofascial pain; 79. 41% had arthralgia and 41% had disk displacement. There was a correlation between higher GJH scores and higher passive mouth opening amplitude (p = 0.0034), with pain (p = 0.0029) and without pain (p = 0.0081). Greater mandibular range of motion was observed in the group with GJH, except for protrusion. Painful mouth opening was statistically higher in the GJH group (p = 0.0279).

Conclusions: Individuals with TMD associated or not to GJH do not differ significantly regarding clinical and psychosocial aspects, except in the mandibular opening range of motion, which if kept at physiological levels can lead to a late diagnosis of TMD in these individuals.

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Figures

Figure 1
Figure 1
Assessment of generalized joint hypermobility (Beighton's Score). A) Little finger extension; B) Knee hyperextension; C) Trunk flexion with the palms of the hands touching the floor; D) Thumb flexion towards the forearm; E) Elbow hyperextension.
See this image and copyright information in PMC

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