Originally Posted by coppertop
I had a root canal on Wed and now I have a canker sore right under my tongue near the gum line. Could this be from my dental work? I think that rubber dam thing might of irritated my mouth, how do they anchor that thing on? Is it like a clamp? Because I think this cankor sore could be were that was clamped on. Im just curious....
Yes, I think they clamp it on to the tooth, so if it is on the gumline right by the tooth, it could be due to the metal clamp or the rubber dam. I hate those things! Soaking it with some warm salt water might help.