What followed was a great experience: after 2 hours of patching things up, my pain was almost completely gone. After a few days of antibiotics, it was gone. The shot required to numb the area didn't hurt (it may have under normal circumstances, but ... "broken leg"). That single correction brought me back on schedule. I had a filling that was sensitive. He replaced it with a "new material", it was more sensitive, so he replaced it again with a different bonding (Neither I nor my insurance were charged) and that sensitivity went away. No cavity filled since then has been sensitive.
I've had a handful of cavities, and I return, reluctantly, but my loyalty lies more in the fact that I had a tangible, identifiable problem (excruciating pain, and later sensitivity) and he troubleshot it until it was fixed to my satisfaction. I wouldn't see another dentist simply because I believe this particular dentist to be predictable. I'll have a problem, he'll fix it. I, like other commentators, have a dentist who uses more than just X-Rays to diagnose cavities. At the moment, I have three spots on the X-Ray and DIAGNOdent that he has said he'd like to "wait on" because he wasn't sure. I had thought -- due to my past experience with tooth pain -- that "waiting on" something like that was asking for trouble, but now I'm wondering if I have a Dentist who understands the limitations of the technology he uses.