If you frequently experience headaches or facial pain, an incorrect bite may be blamed. Muscle tension headaches are caused by dental stress. If you're experiencing a dull, non-throbbing ache on one or both of your heads, you may have a tension headache. Aspirin can usually alleviate the pain.
To properly swallow, the muscles in both your upper and lower jaws must be tightened. Typical swallowing, usually over 2,000 times a day, combined with a misaligned bite, can put undue strain on the jaw muscles, resulting in muscle strain and, ultimately, headaches. Migraine and chronic headache sufferers clench their teeth in a balanced, centered position. The muscles contract extremely hard, but the jaw isn't put under much stress. Jaw clenching during the night is often unnoticed, but it sets the stage for migraines and chronic headaches.