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  • Title: Headache attributed to masticatory myofascial pain: impact on facial pain and pressure pain threshold.
    Author: Costa YM, Porporatti AL, Stuginski-Barbosa J, Bonjardim LR, Speciali JG, Conti PC.
    Journal: J Oral Rehabil; 2016 Mar; 43(3):161-8. PubMed ID: 26440358.
    Abstract:
    There is no clear evidence on how a headache attributed to temporomandibular disorder (TMD) can hinder the improvement of facial pain and masticatory muscle pain. The aim of this study was to measure the impact of a TMD-attributed headache on masticatory myofascial (MMF) pain management. The sample was comprised of adults with MMF pain measured according to the revised research diagnostic criteria for temporomandibular disorders (RDC/TMD) and additionally diagnosed with (Group 1, n = 17) or without (Group 2, n = 20) a TMD-attributed headache. Both groups received instructions on how to implement behavioural changes and use a stabilisation appliance for 5 months. The reported facial pain intensity (visual analogue scale--VAS) and pressure pain threshold (PPT--kgf cm(-2)) of the anterior temporalis, masseter and right forearm were measured at three assessment time points. Two-way anova was applied to the data, considering a 5% significance level. All groups had a reduction in their reported facial pain intensity (P < 0·001). Mean and standard deviation (SD) PPT values, from 1·33 (0·54) to 1·96 (1·06) kgf cm(-2) for the anterior temporalis in Group 1 (P = 0·016), and from 1·27 (0·35) to 1·72 (0·60) kgf cm(-2) for the masseter in Group 2 (P = 0·013), had significant improvement considering baseline versus the 5th-month assessment. However, no differences between the groups were found (P > 0·100). A TMD-attributed headache in patients with MMF pain does not negatively impact pain management, but does change the pattern for muscle pain improvement.
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