u/GreenCurrency7136

I had to get an exam for paperwork reasons. The dentist said one of my fillings “looks” weird on x-ray but didn’t explain. He would like to redo the filling before signing my paperwork. Thing is, I just had an exam 2 months ago and they said nothing about it. It’s also been there for over 10 years and never gave me an issue, and I have had annual dental exams that whole time. How should I approach this?