Which of the following signs is not indicative of a mandible fracture?

A mandible fracture can present with several specific signs and symptoms that help in diagnosing the injury. Among these, deformity is often noticeable due to the structural changes in the jaw, and loss of normal occlusion of teeth occurs because the alignment of the jaw is compromised. Bleeding in the mouth can also be a common finding, as trauma to the mandible may lead to lacerations or the disruption of blood vessels within the oral cavity.

Swelling in the forehead region, however, is not typically associated with a mandible fracture. This swelling is more likely to suggest an injury to the upper facial structures, such as a fracture of the frontal bone or other cranial injuries. It is important to understand the anatomy and the specific areas affected by trauma when considering signs of injury, as different regions of the head manifest different symptoms based on the type of fracture or injury incurred.