To dream that you are in the jaws of an animal signifies a threat to your happiness due to failed relationships and hasty judgment.
To see your own jaw in your dream represents your stubbornness, persistence, and forcefulness. You may need to be more purposeful in your approach.
To dream that your jaws are tight indicate ill feelings and bottled emotions.
To dream that you break or dislocate your jaw suggests that you are allowing yourself to be swayed by your emotions rather than adhering to your principles.