(All primitive humans bit tip-to-tip, most modern humans have an overbite). This dysfunction manifests in a wide assortment of disorders, Tourette’s being only one of them. Many studies have shown that people with craniomandibular dysfunction have very high medical utilization rates.
Therapy entails using oral appliances to improve jaw function. Functional tests, based on dental orthopedic principles are done (dysfunction not evident on X-rays) which illustrate the defects. Appliances are modified and adjusted till function is ideal and symptoms are resolved. Typical treatment involves lower jaw advancement which necessitates molar eruption to stabilize.