My dentist had to give me several injections to prepare for a crown. The tooth is on the bottom 2nd tooth from the back. One week later my jaw locked up such that I can not open my mouth more than approximately 1/2 inch. this has been going on for 8 to 9 days.
Hi locked jaw occurs due to dislocation of TM joint or any pathology preventing its opening. It can easily be corrected.