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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 ]
The communications of each pterygomandibular space are: [1] to the buccal space anteriorly; to the lateral pharyngeal space and peritonsillar space medially (around the medial pterygoid muscle). to the submasseteric space laterally (around the ramus of the mandible) to the parotid space posteriorly; to the deep temporal/infratemporal space ...
Sometimes mandibular fractures in the region of the angle of the mandible may cause an infection of the submasseteric space. [1] The signs and symptoms of a submasseteric abscess may include marked trismus (i.e. difficulty opening the mouth, since the masseter elevates the mandible and it becomes restricted) and swelling in the region of the ...
This can result in a fracture of the glenoid fossa and displacement of the condyle into the middle cranial fossa, potentially injuring the facial and vestibulocochlear nerves and the temporal lobe. Lateral dislocations move the mandibular condyle away from the skull and are likely to happen together with jaw fractures. [8] [9]
Most fractures here are caused by strokes (contusion or penetrating injuries). [2] Conservative management of minor fractures can lead to trismus (lockjaw) that can later only be corrected by removing the coronoid process. [1] For serious fractures, a surgery involving open reduction and internal fixation can have good outcomes. [1]
3D CT of mandible fracture. This injury involves the alveolar bone and may extend beyond the alveolus. [5] [6] There are five different types of alveolar fractures: Communicated fracture of the socket wall; Fracture of the socket wall; Dentoalveolar fracture (segmental) Fracture of the maxilla: Le Fort fracture, zygomatic fracture, orbital blowout
The Le Fort III fracture (transverse fracture) occurs at the level of the skull base, resulting in complete craniofacial separation of the midface from the base of the skull. [ 2 ] [ 3 ] The fracture line extends through the zygomatic arch , the pterygoid plates , the lateral and medial orbital walls , the nasal bones , and the nasal septum .
In human anatomy, the facial skeleton of the skull the external surface of the mandible is marked in the median line by a faint ridge, indicating the mandibular symphysis (Latin: symphysis menti) or line of junction where the two lateral halves of the mandible typically fuse in the first year of life (6–9 months after birth). [1]