<prompt> Costens syndrome refers to neurological pain associated with?Sphenopalatine ganglionTemporomandibular jointGlossopharyngeal nerveLingual nerve  <response>: Temporomandibular joint REF: Dhingras ENT P-400, Cawsons essentials of oral pathology and oral medicine By R. A. Cawson, E. W. Odell page. 199 Costens syndrome is abnormality of temporomandibular joint due to defective bite. It is characterized by otalgia, feeling of blocked ear, tinnitus and sometimes veigo. Pain also radiates to frontal, parietal and occipital region Costens syndrome is an antiquated term applies to headache, ear symptoms otalgia, tinnitus and burning pain in tongue and throat and was ascribed to over closure causing excessive backward movement of head of condyle 