The masticatory system performs a wide range of functions including, swallowing, grinding of food, speaking, etc. Pain associated with inability to perform these functions is a characteristic feature of masticatory system disorder. The term "temporomandibular disorders" (TMDs) refers to a group of over 30 medical conditions that affect the muscles and tissues of the jaw as well as the temporomandibular joint (TMJ). Many medical conditions, such as headaches, fibromyalgia, back pain, and irritable bowel syndrome, frequently co-occur with TMDs.
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