One of my boas had this issue not too long ago. He was a little eager on feeding day and struck out of his cage and snagged a towel that was lying in front of him as soon as I slid the glass open. Of course he immediately freaked out and started trying to tear his jaw free and I ended up having to very carefully cut the few threads his teeth were snagged on.
Anyways, afterward his jaw was all kinds of messed up. He yawned and stretched his jaw quite a few times but I saw no changes at all. I left him alone for a day and it took him a bit over 24 hours to work his jaw back into place again. So I'd say give it a day or two, see how things are going, and if worse comes to worse you might need a trip to the vet to see just what happened.