I have been in dentistry for 30 years. If I have a pt with a hx of multiple rx and continued pain ..coupled with a root canal ..i would recommend an endodontist or to just have the tooth extracted. I recently had my first tooth extracted because it was cracked and no amount of money can fix that. sometimes you just have to let a tooth go. Just because a pt has rct does not mean that everything is golden. That being said...of course I WOULD RECOMMEND RCT BEFORE extracting because it is always worth trying keep a tooth vs losing one forever. I MUST replace mine that i lost right now.

Do not ever play around with a dental infection.side note: a tooth treated endodontically can NOT POSSIBLY HURT TO TEMP. Could it be a different tooth...or either there is an accessory nerve still in an undiscovered/ untreated canal? I wish you well and hope you can find some comfort. if you feel you need answers that are not being addressed then maybe a second opinion is what you should seek. blessed be, dee .