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A broken jaw (or mandible fracture) is a common facial injury. Only the nose is broken more frequently. A broken jaw is the 10th most common fractured bone in the human body. Fractures (breaks in the bone) are generally the result of a direct force or trauma to the jawbone (mandible). A dislocated jawbone means that the temporomandibular joint (where the jaw connects with the skull) is moved out of place.
Sectional anatomy of the mandible with frequency of fractures. Given the unique geometry of the mandible and temporomandibular joints (TMJs), these fractures can result in marked pain, dysfunction, and deformity if not recognized and treated appropriately. These fractures may be associated with other injuries that alone have significant morbidity.