i have a crown on my lower incisor with another crown second molar back and a bridge between. About three weeks ago I started having tooth pain in that area, that continued to worsen to the point of going to the ER. Was prescribed something for the pain and amoxicillan 875 bid. Three days ago while eating pound cake of all things, my crowns/bridge fell out. I no longer have dental insurance, live in a different state than before, am in severe pain and my jaw is swelling. Dont know what to do. feels like a nerve is exposed. The ground down teeth are both black in color. Is that the way they were prepared before crowning? HELP