About nine months ago I had a deep cavity filled in tooth 15. For about a week after the filling, I felt a numbness or pressure in my cheek. I just assumed it was from the filling. A few months later the same pressure came back in my cheek and went away a few days later. Then last month, the same thing happened again. I went to my dentist and she said the filling may be a little high so she filed it down. She also took an X-ray and didn't see anything. She did a cold test and said my tooth did not respond as it should. I didn't feel any pain. So she referred me to an endodontist for a root canal. He did the same tests as her and said while my tooth didn't respond as it should he wasn't sure if I need a root canal, I have no sensitivity to hot or cold and no pain in the tooth, just this weird pressure in my cheek that comes and goes. The endodontist did a 3D cone X-ray and found that the root of the molar is basically touching my sinus bone. I just don't know what to do. He said I may eventually need a root canal but he just wasn't sure. It's not been a month and the pressure is back in my cheek and it radiates into my eye. I don't know if it's my tooth, my sinus or something else. I am attaching the X-ray from the dentist.