Q. hi, I slightly chipped a lower back tooth around a year ago. this tooth has a filling in it. a previous dentist said if it is not affecting me it can be left as my tooth would have to be drilled to replace the filling and smooth out the chip; which it is not affecting me. I recently went back to see another dentist and he said that i need the filling sorted to cover the chip as infections can go into the part that is showing the filling which can cause problems. I have no issues with the tooth and I do not want my tooth to be drilled further to make a larger filling to fit round the chip. does it really need doing if I am not in any pain? thatnks,