I have had toothache since Saturday - got an emergency appointment on Monday at dentist. He couldn't locate which tooth it was but said it sounds like it is dying from what I described the pain to be like. Either will have to have it out or root canal and then crown. He sent me away with some gel, just in case it is my gums. Well, we are now on Wednesday and I am going round the bend with the pain - comes like contractions - every 10 minutes or so and lasts for 5/10 minutes. Anyone else had this and do you know how long it takes for a tooth to die. Dentist said it will become more obvious which tooth it is, but as yet it hasn't so no point in going back as he won't do anything until we know.