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myofascial pain-dysfunction syndrome


Definition: dysfunction of the masticatory apparatus related to spasm of the muscles of mastication precipitated by occlusal dysharmony or alteration in vertical dimension of the jaws, and exacerbated by emotional stress; characterized by pain in the preauricular region, muscle tenderness, popping noise in the temporomandibular joint, and limitation of jaw motion.

Synonym(s): temporomandibular joint pain-dysfunction syndrome, TMJ syndrome

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.