I would encourage you to be persistent. My PCP and my general dentist dismissed my concerns. It was a specialist ENT in the Rhinology Dept that told me I needed surgery and to see an oral surgeon. I was disappointed that they took yet another X-ray although my CT scan was on file and offered to extract the tooth. That was their only course of action, or I could see an endodontist to determine if the tooth could be repaired. It’s terrible that you have spent so much money and are still in pain.