A short while ago I had a pretty bad sinus infection. On the right side of my face every tooth in my head ached horribly. I went to the dentist and he examined my teeth and said nothing was wrong. He did not take an x-ray, which I requested. I went on an antibiotic and the infection subsided. That side of my face was tender for a week or so and now I have noticed that I have a bump on my gum over my upper right first molar. I cannot see it that well but it is tender to the touch. When I push on it at times it seems to move.

I take very good care of my teeth, no gum problems or tooth extractions. The tooth that has the bump above it had a crown put on it about a year ago (due to multi-surface fillings). What could this possibly be? I am really concerned.