A little over three years ago when I was prgnant with my daughter one of my fillings came out and I never had it fixed, over the past two months it has got much worse and now I can't bear the pain, I made a trip to the dentist today to see if they could pull it and he said that the x ray showed a ball under the tooth and it would have to be surgicaly removed.
What does this ball mean, and why did it cause him to suggest surgery?
thanks