ER docs see drug seekers every day, and many complain of dental pain. Therefore, their index of suspicion is very high, and their response to dental pain conservative. Some very smart er guys have learned to do dental blocks with local anesthetic injections, effective for dental pain and disappointing for narcotic seekers. That said, dental pain is awful, and er's are poor places to seek treatment. Your dentist can probably suggest some local emergency dental centers. ER's attached to teaching hospitals with dentistry schools sometimes have emergency dental consultants. Or treat your family dentist really well, and maybe he will give you a cell number.