Expert: Steven C. Scherr, D.D.S. - 8/22/2007

Question
I had a tooth filled about 2 weeks ago.  After the freezing wore off, I experienced excruciating pain at the site of the injection, along with limited movement of my jaw, more particularly, protrusion of my mandible.  Since then, I'm not experiencing pain while my jaw is relaxed, however, I still cannot protrude my jaw, which prevents me from biting into an apple, a sandwich, and even yawning can be awkward and painful.

Has this procedure possibly given me TMJ dysfunction?  Or is it simply the muscles (masseter and pterygoids) still spasming?

Answer
Isidora,

There are a number of possibilities.  However, it is most likely due to a bruise at the injection site.  This should improve within another 2-4 weeks.  A TMJ problem cannot be ruled out, though this would not be related to the injection.  A TMJ problem could occur if the jaw were held open for an extended period of time during the procedure.

If it doesn't resolve over the next few weeks, I suggest you seek referral to a dentist with advanced training in TMJ disorders and facial pain.

Best wishes,

Steve