The central nervous system (C.N.S) and oral cavity have a close anatomical location. They have common vascular supply and a related embryological origin. Motor and sensory organs in orofacial area have numerous connections with C.N.S. via the cranial nerves. As yet, diseases of C.N.S. have been studied in different branches of medicine such as otology, ophthalmology, neurology, neurosurgery and dentistry. Recognition of orofacial manifestations of C.N.S. disorders are in direct relation with the responsibilities of a dentist. Classification and defining of a unique methodology for recognition...