He actually wants to throw a few stitches in there. He wants to put her under with the throat tube because the tooth was not coming out as easily as he thought it would, and she was waking up fast. He said he probably could have done it, but he didn't want to risk causing her too much pain. He said it was a very bad abscess, so he wants to take his time cleaning and sterilizing the area. A trach. tube would make it possible to do so without trying to rush around the mask and stopping every so often to put it back on and put her back to sleep. He mentioned that the entire process, including gassing, extraction, cleaning and waking her up would take about 15 minutes and given the position of the tooth (it's one of the very back ones), he didn't want to have to work around the mask and rush around if he didn't have to be. It makes sense to me, and I'm glad he's showing that compassion for my little one. He also said that he wouldn't be 100% sure until the procedure, but 2 teeth might have to come out. She was pretty swollen and the area was filled with pus, so he couldn't get a perfect look at the area. He cleaned up the area with some sort of antibacterial thing, and the medicine will alleviate some of the swelling so he'll be able to see just how many teeth are involved in the abscess.
Looking back, I see that I forgot to mention that he did take blood from her again while she was out. The blood work came back with an abnormal white blood cell count, which he said is a sign of infection. It was the same last time and he doesn't seem worried about it, but I imagine he'll know more when he gets in there for the procedure.
Edit: I'm pretty sure some of my explanation sounds garbled and the terms are probably confused. I was trying my best to follow along with everything he was saying, but this is a new thing for me and I was feeling pretty relieved that he didn't come back into the room and tell me, "We found a tumor back there and it's not looking good". I'm feeling pretty confident that he knows what he's talking about, and Kismet is already looking a little less puffy. She's definitely less ouchy - she let me pet her face today. Yesterday, she wanted NO part of that.