Tension-type and malocclusion headache

Tension-type headache is the most common cause of headache, head pain; however, the underlying mechanism remains unclear. Tension-type headache includes headaches caused by both muscle tension and mental stress. 
Dental malocclusion is thought to act as a source of peripheral stimulation which may lead to increased tonus of the masticatory muscles, abnormal co-ordination and articular disc displacement. The resulting dysfunction will cause pain or predispose the patient to headaches of differing aetiologies