I've got the same issue. It's been probably at least 4 months now, and still periodically get a zinging pain when chewing. I also sometimes feel a mild ache in the jaw in that area. I'm worried the dentist didn't do the filling properly and I'll end up needing a root canal. I went back once, and same as your dentist, all she did was a little bit of occlusal adjustment, no x-ray. It did seem to help some, but I don't know, maybe I'm just getting used to it. This is the first I've ever had a tooth still hurt after getting a cavity filled.