So about 15 years ago I had a root canal done. Everything went fine and I didn't experience any pain or problems from it. Fast forward to last summer, I needed to have a crown lengthening done on another tooth, (I come from a family w/a long history of terrible teeth), and when my new dentist took an x-ray, she noticed that there was a cyst inside my gums right above the old root canal tooth. She asked if I had any pain from it and when I said no, she said that we would just have to keep an eye on it since it's close to my nasal passage and we'll deal w/ it if there were any problems to come. I often clench my teeth when sleeping - and Ive been stressed lately so I've really been clenching - and the other day I woke up in more discomfort than usual. When I looked at my gum, I noticed that there was a small cyst on the outside, right where I think the cyst is on the inside of my gums, right above the root canal tooth from 15 years ago.
My question is this: Could the cyst, (or what appears to be a cyst), be from me clenching my teeth, or is it the internal cyst starting to come out? Are there any home remedies for this? Or am I totally screwed? Im worried b/c I do not want to have to go through another oral surgery again like the crown lengthening - it was painful and expensive!