Jaw dislocation

Introduction The dislocation of the jaw is caused by a fracture of the jaw. Most of the jaw fractures are caused by trauma. According to the cause of injury, they can be divided into two categories: firearm damage and non-firearm damage. The jaws form the bones and muscles of the upper and lower parts of the mouth. The upper part is called the upper jaw and the lower part is called the lower jaw. The bone of the jaw is the jaw bone, which is divided into the maxilla and the mandible. The mandible is the only active bone in the head. It also has its weak parts in the anatomy, such as the median condyle, the pupil, the mandibular angle and the condylar neck. These are the predilections of the mandibular fracture. . The mandible is the most common bone in maxillofacial fractures due to its prominent position and anatomy.

Cause

Most of the jaw fractures are caused by trauma. According to the cause of injury, they can be divided into two categories: firearm damage and non-firearm damage.

The mandible is the only active bone in the head. It also has its weak parts in the anatomy, such as the median condyle, the pupil, the mandibular angle and the condylar neck. These are the predilections of the mandibular fracture. . The mandible is the most common bone in maxillofacial fractures due to its prominent position and anatomy.

an examination

Related inspection

Bone joint and soft tissue CT examination bone imaging bone palpation

Ear pain, normal tympanic jaw pain, X-ray examination: craniofacial plain film.

Diagnosis of jaw fractures should first understand the cause of injury, the location of direct injury and the course of injury, and then check the local and full physical signs, with reference to the above clinical features, to determine whether there are fractures, fractures and types. When conditions permit, X-ray examination and CT examination can be further performed to understand the location, number, direction and displacement of the fracture line. It should be emphasized that the examination should be exhaustive, and the diagnosis of multiple injuries to the maxillofacial region and multiple injuries of the whole body should not be missed, so as to provide a sufficient basis for the development of a complete treatment plan.

Differential diagnosis

The disease is mostly caused by traumatic factors, the patient has a history of obvious trauma, according to its clinical manifestations and imaging examination methods, such as X-ray examination, CT examination can generally be diagnosed.

Excessive jaw development: excessive development of the jaw is a clinical manifestation of anterior teeth.

Jaw joint pain: Jaw joint pain is a manifestation of temporomandibular joint disorders.

The jaw was "fan-shaped" bone destruction: X-ray examination showed that the jaw was "fan-shaped" bone destruction, and the edge was worm-like as one of the main symptoms of gingival cancer.

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