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Mandibular fracture, also known as fracture of the jaw, is a break through the mandibular bone. In about 60% of cases the break occurs in two places. [ 1 ] It may result in a decreased ability to fully open the mouth. [ 1 ]
It is bordered below by a number of splenial bones, while the angle of the jaw is formed by a lower angular bone and a suprangular bone just above it. The inner surface of the jaw is lined by a prearticular bone, while the articular bone forms the articulation with the skull proper. A set of three narrow coronoid bones lie above the ...
Commonly injured facial bones include the nasal bone (the nose), the maxilla (the bone that forms the upper jaw), and the mandible (the lower jaw). The mandible may be fractured at its symphysis, body, angle, ramus, and condyle. [4] The zygoma (cheekbone) and the frontal bone (forehead) are other sites for fractures. [13]
Unlike OM of the long bones, hematogenous OM in the bones of the jaws is rare. OM of the jaws is mainly caused by spread of adjacent odontogenic infection. The second most common cause is trauma, including traumatic fracture and usually following a compound fracture (i.e. one that communicates with the mouth or the external environment).
The maxilla is a paired bone that forms a significant portion of the midface. It articulates with the frontal, zygomatic, palatine bone, and sphenoid bones. The Le Fort I segment, the portion of the maxilla mobilized during the osteotomy, receives its blood supply primarily from the ascending palatine artery (a branch of the facial artery) and the anterior branch of the ascending pharyngeal ...
This may be undertaken when cysts are very large, and their removal would leave a significant surgical defect or risk jaw fracture. Enucleation with curettage—this is the removal of the cyst and some of the surrounding bone, which may contain remnants of the lining of the cyst. Curettage may be undertaken if the cyst lining is thin and ...
The surprise was that part of Yager's jaw hadn't made it into his grave along with the rest of his remains. "We have absolutely no idea how [the jawbone] came into the child's collection," said ...
The alveolar bone proper, also called bundle bone, directly surrounds the teeth. [6] The terms alveolar border, alveolar crest, and alveolar margin describe the extreme rim of the bone nearest to the crowns of the teeth. [7] [8] [9] The portion of alveolar bone between two adjacent teeth is known as the interdental septum (or interdental bone ...