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What to do: See your dentist or endodontist to save the tooth with root canal treatment. Symptom: Constant and severe pain and pressure, swelling of gum and sensitivity to touch. Possible problem: A tooth may have become abscessed, causing an infection in the surrounding tissue and bone.
Combined Root Canal And Gum Problems. I had a bad toothache and couldn't tell whether the pain was actually coming from my tooth or maybe my gum. Seems like it took my dentist a while to figure it out, too.