Evaluation of a jaw dislocation begins with a history and physical examination.

Physical findings in someone with a jaw dislocation may include:

• Inability to open or close the mouth normally
• Jaw pain:
• Worse during speaking or chewing
• Jaw swelling
• Mouth does not close properly:
• Upper and lower teeth do not line up correctly
• Tooth fractures
• Tooth avulsion:
• Loss of a tooth

Tests may be required to make the diagnosis of a jaw dislocation.

Tests that may be used to evaluate a jaw dislocation include:

• Facial bone and jaw x-rays
• Panorex study:
• Often the best x-ray
• CT scan of the facial bones