What are the signs of a dislocated jaw?

Bite not normal: To really know if your jaw is dislocated you'll need to have a clinical exam but one common finding with dislocation is a sudden change in your bite, specifically a sense that your back teeth don't fit together normally. If it pulls strongly to one side or another on opening it may in fact be broken. Get it looked at sooner rather than later.

Pain and Can't Close: Normally, you can't bite properly (your teeth don't meet in their usual manner) and you have pain in the joint. Often, you also can't open properly or move your jaw from side to side. It should be pretty obvious.

Can't close jaw: Can't close jaw , jaw deviated (if unilateral) Bite off. Extreme pain. See oral surgeon.