Hello. I had RCT on tooth #4 in May. I began experiencing a constant dull pain in Oct. An endodontist at that time said there may be a small VRF based on a "thin mesial wall and small bony defect" seen on CBCT Scan but he wasn't certain. It began hurting even more over the last few weeks, so I saw a different endodontist on Monday. He said he didn't think it was a VRF. Told me to try a week of Amoxicillin, despite there being no infection seen on his CBCT. There was slight discomfort on percussion and bite stick testing but periodontal probing was normal. Although if it's on the mesial side (between tooth #4 and #5), I don't see how you would get a probe in between the teeth. The pain has gotten even worse over the last few days. Anyway, here is an image of the CBCT Scan taken in Oct. Does this look like VRF? Thanks.