It looks like I've got around 3 cavities, and he'll work on those next week. Regarding the pain from my lower-left wisdom tooth, he said I could either have the excess gum cut away or just extract the tooth. He said he'd personally get the gum cut away, but that the only 100% guarantee is to have it extracted. I said if he thought it was better, I'd get the gum cut away.
So next week: cavities and gum cutting.