If you are concerned see your dentist. According to the brief explanation that you gave I would guess that you are fine. I've had a myriad of such things happen to me between Karate, Boxing, Wrestling and BJJ. I usually give it the three day test. By that I mean if it is not on its way to healing in three days then I give it a second thought (but I still won't go to the doctor), otherwise I don't even think about it. Although sometimes more serious injuries take longer, much longer. Eh...
My hunch is you are worried for nothing.
So knock it off.
(Disclaimer: I am not a doctor and couldn't diagnose injuries online even if I was a doctor.)