[Head- and neck pain of non-dental origin].

Although temporomandibular joint and masticatory myofascial pain (TMD) are a common cause of chronic head and neck pain, there are a number of other conditions which may cause chronic head and neck pain with similar symptoms. Differentiation between the various causes of chronic head and neck pain must be based primarily on historical information because there are few objective physical, laboratory or imagery findings that establish a definitive diagnosis of a specific chronic head and neck pain disorder.