Six month pain in front teeth after crowns and root canals. temp crowns have been removed and treated with bleach twice for black deposit. no relief. ?

Second opinion: Time to have another set of eyes take a look at the problem. Ask your dentists fora consult with a root canal specialist. If a root canal specialist (Endodontist) did the root canals get a referral to another one, Good luck.

See an endodontist : who is a dental specialist focused on root canal therapy relieving tooth pain and saving natural teeth. Sometimes even after a root canal, the infection continues to grow and you may experience a gumboil and pain. See an endodontist for evaluation, diagnosis and treatment. Good luck.

Front pain: the black deposits on the teeth are related to the cement used and possibly leakage under the crowns the pain is likely related to the gums or the bite of the teeth. Hitting too hard on the front teeth will leave the ligaments that support the teeth sore and painful even though the nerves in the tooth are gone.

More info needed...: Was your bite changed with the new temps? Have the teeth been examined by an endodontist or were there infection before the root canal treatment? You really need to be examined by a second party for this problem... call an endodontist for an appointment.

Pain: First of all temporary crowns are supposed to last for weeks, not months. Second, black deposits indicate leakage or gum problems. Third, if you had root canal treatment and you are still in pain you may have root canal treatment failure which may. E due to leaking temporaries. Consultation with specialist Endodontist advisable.