Quintessence international
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The cardinal signs and symptoms of temporomandibular disorder (TMD) are pain in joints and/or muscles, joint sounds, and limitation of movement. They are also associated with other complaints, one of which is headache. Myogenous TMD patients can be divided into those with a high and low temporomandibular opening index (TOI). These two subgroups appear to vary in several ways, including symptom severity. The objective was to assess the relationship between reported headache and TMD patients and a control group with no TMD and to compare the report of headache in high- and low-TOI myogenous TMD patients. ⋯ The risk for reported headache is 5.20-times greater for myogenous TMD patients compared to the control group, but no difference was noted between the arthrogenous TMD and the control group. Age serves as a mild protective for reported headache. Younger patients tend to report more headaches. More frequent and severe headache occurred in the high-TOI group. This study serves as a reminder for clinicians in general practice to consider the effect of comorbidity when faced with TMD patients with headache.