Symptoms of a broken jaw can include:
Bruising, swelling and tenderness along your jaw or below your ear
The feeling that your teeth don't fit together properly or that your bite is "off"
Improperly aligned teeth
Missing teeth or loose teeth
Swelling or a bruised area in the gum over your jawbone
Difficulty opening your mouth
Pain in your jaw joint
Numbness in your lower lip or chin — a possible sign of nerve damage related to the fracture
When a young child falls on his or her jaw, a deep cut may occur along with a fractured jaw. Parents or other adults may focus on stopping the bleeding and not consider signs of a jaw fracture. If the child is too young to describe some symptoms, the jaw fracture may not be discovered until the child is older and complains of bite problems (malocclusion).