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[Dysfunction of the manducatory apparatus].

Temporo-mandibular disorders -TMD- involve a whole set of anatomical, physiological and clinical disorders that exceed by far the sole temporo-mandibular joint. The main symptom of this condition, most frequent in female patients, is pain. Three syndromes are associated with TMD: a muscular syndrome, not only involving masticatory muscles but also muscles of the neck and pain in seemingly unrelated anatomical regions, which can be misleading; an inflammatory articular syndrome; a mechanical syndrome affecting mouth-opening path. The main treatment of this very common and benign disorder is based on physical therapy. However, physicians should be warned that some patients might exhibit similar symptoms in rare cases of malignant tumor.