Reduction of head and face pain by challenging lateralization and basic emotions: a proposal for future assessment and rehabilitation strategies.

Chronic facial pain has many of the clinical characteristics found in other persistent musculoskeletal conditions, such as low back and cervical pain syndromes. Unique to this condition, however, is that painful facial movements may result in rigidity or altered ability to demonstrate mimicry, defined as the natural tendency to adopt the behavioral expressions of other persons involved in the interaction. Loss of ability to communicate through emotional expression can lead to impaired processing of emotions and ultimately social isolation. Diminished quality and quantity of facial expression is associated with chronic face pain, tempromandibular dysfunction, facial asymmetries, and neurological disorders. This report provides a framework for assessment of impaired emotional processing and associated somatosensory alterations. Principles for management for chronic facial pain should include graded motor imagery, in addition to standard treatments of manual therapy, exercise, and patient education. A case study is provided which illustrates these principles.