Headaches are classified into four basic categories: migraine, cluster, sinus, and tension. While an occasional headaches are often treated by over-the-counter pain medications, more frequent or severe headaches should be evaluated by a physician. Tension headaches are the most commonly experienced headache. One possible cause of chronic tension headache is an abnormal bite or occlusion. Until the occlusion issue is addressed, the muscles of the temple, jaw, face, and neck may remain contracted or tense.
