Jaw dysfunction in Temporomandibular joint disorders

Investing correlation of neck disability, jaw dysfunction and muscle tenderness those with and without TMD

Temporomandibular joint disorders (TMD) are multifactorial musculoskeletal conditions affecting the muscles of mastication, temporomandibular joint (TMJ) and associated structures. Previous evidence has shown an association between TMD and other structures of the head and neck including the cervical spine and headaches.

The current study established that heightened levels of myofascial tenderness in the upper trapezius and temporalis muscles showed a positive correlation between high levels of jaw and neck dysfunction.

Disability is a complex situation that includes factors beyond individual signs and symptoms. For this reason, considering the inherent impact that a multifaceted condition such as TMD can have on a patient, disability as an outcome measure was included in this study. The authors showed a significantly high correlation between jaw disability and neck disability as well as a fair to moderate correlation between tenderness and jaw and neck disability.

The fact that neck and jaw disability are strongly related stresses the importance of assessing and treating these two separate body segments concurrently. In addition, if patients with TMD are suffering from both neck and jaw issues this highlights the importance of physical therapists and dentists potentially collaborating amongst each other to enhance service delivery.

> From: Silveria et al., Biomed Res Int 2015 (2016-02-29 19:32:34) 512792 (Epub ahead of print). All rights reserved to The Author(s). Click here for the online summary.

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