Temporomandibular dysfunction, chronic orofacial pain and oral motor disorders in the 21st century.

This article describes the various sensory and motor disorders that afflict the orofacial region. These abnormalities are broadly separated into three groups of pathologic conditions: temporomandibular disorders; chronic orofacial pain disorders; and oral motor disorders. This article focuses on the diagnostic features of each specific disorder, suggesting alternate nomenclature for each disorder.