I Recently Had 4 Fillings Redone On The Top And

I recently had 4 fillings redone on the top and bottom of the right side of my mouth. I've been back twice to the dentist. Both times he ground down the high spots. The second time he realized that a buckle filling hadn't taken and the nerve was exposed or at least very sensitive. My sensitivity to hot cold has subsided some but I'm getting terrible pain in my lower jaw, upper jaw, temple. I'm taking 3 advil every 5-6 hours. I can keep that up. Not sure if I should go back to the same dentist or seek a new one. Would like to know what's wrong? And would like to know if I should seek a different opinion/Dentist?