Hope your jaw is decreasing in size, Emily!
I only asked about the oral surgeon as I wasn't sure who would treat this kind of injury. But, I too, have been to PT for my jaw. Not the result of an accident, just jaw,TMJ, neck pain that the regular PT (not the one I have now) couldn't resolve. He sent me to a colleague in a different town, who gave me exercises that resolved the issue in about 3 weeks. I did most of the exercises in the car, on the way to work, and throughout the day.
The funniest thing was, when I was seeing her, it was one of those open, big PT rooms, where everyone does their work in the same place. In walked a guy a I went to elementary school with! He was mortified, but, I thought it was funny. We were in Harvard, MA, about 40 miles west of where I grew up.