Myofascial pain of masticatory muscles can result in orofacial pain.
A feature of myofascial pain is the presence of pressure points.
Criteria for myofascial pain - all of the following:
(1) regional dull, aching pain at rest
(2) use of the affected muscle aggravates the pain
(3) pressing on a trigger point alters the pain complaint and may be associated with pain referral
(4) application of vapocoolant spray or injection of a local anesthetic to the trigger point results in a > 50% reduction of pain
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Specialty: Otolaryngology
