You need to have your teeth cleaned to prevent gum disease. That is a different issue than fillings. If you do not take care of your gums, eventually you will develop periodontal disease and your teeth won't need fillings, they will need pulling. The inflammation from periodontal disease is associated with heart disease. And I am getting one of my numerous screws taken out of my ankle this winter. It's head is at a sharp 45 degree angle just under the skin - I can hardly wait! Your back is an entirely different situation. And unfortunately nobody can tell you with 100% certainty if the outcome would be same, better or worse. Wishing you a second opinion that makes your decision easier, and finding a dentist (with an awesome dental hygenist) that you trust! tokie