Originally posted by: moshquerade
everyone has 2 TMJs. TMJ - is temperomandibular joint, which is the joint which allows you to open and close your mouth.
sounds like you have TMD = temperomandibular joint Disorder. the "pop" sound you heard was your TMJ going out of socket. it went back in by itself, but that is still gonna cause some inflammation which is why it is sore.
the dentist is going to tell you to be careful yawning, opening your mouth wide to eat, don't chew gum and the like. there is really nothing you can do to prevent it from happening again but be careful not to stress out the joint or don't open your mouth widely.
and you can take tylenol for the pain.
there, saved ya a dental visit.