jaw bulge
Introduction
Introduction The jaws form the bones and muscles of the upper and lower parts of the mouth. The upper part is called the upper jaw, the lower part is called the lower jaw, and the bone of the jaw is the jaw bone. It is divided into the maxilla and the mandible. The abnormal protrusion of the jaw is called the jaw bulging. The bone of the jaw is the jaw bone, which is divided into the maxilla and the mandible. There is a Hi-ghmori sinus (maxillar sinus) that opens to the inside. Among the four protrusions, the frontal process, the condyle and the condyle are each connected with a bone block of the same name, and the alveolar process has a tooth groove, and there is an upper jaw tooth.
Cause
Cause
Jaw bulging is an abnormal protrusion of the jaw. Bone lesions in the jaw can cause the jaw to swell.
It forms 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. There is a Hi-ghmori sinus (maxillar sinus) that opens to the inside. Among the four protrusions, the frontal process, the condyle and the condyle are each connected with a bone block of the same name, and the alveolar process has a tooth groove, and there is an upper jaw tooth. The human maxilla is composed of a combination of a narrow upper jaw and a anterior maxilla. There is an opening between the two bones that connects the nasal cavity to the oral incisor (stensen's canal). In evolution, these two bones began to appear from the bony fish. In the upper jaw of the squid, there is a movable connection between the iliac crest and the skull of the first zygomatic arch.
Examine
an examination
Related inspection
Oral X-ray examination of maxillofacial examination Oral endoscopic jaw movement examination of maxillofacial five-dimensional CT examination
When the patient has diseases such as mandibular ameloblastoma and maxillofacial giant cell tumor, the patient may have symptoms of jaw bulging.
Diagnosis of the jaw bone should first understand the cause, the location of the direct injury and the passage of the injury, and then check the local and full body signs, refer to the above clinical characteristics, 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.
Diagnosis
Differential diagnosis
Jaw cyst: refers to the presence of a liquid cystic mass in the jaw, which gradually increases and the jaw expands and destroys. According to the pathogenesis, it can be divided into two types: odontogenic and non-dental. The cyst is evolved from the odontoid tissue or the tooth; the non-odontogenic cyst can be formed by the epithelium remaining in the jaw bone during embryonic development, such as a fissure cyst, or a blood extravasation caused by injury. Sexual cysts and aneurysmal bone cysts.
Excessive jaw development: a clinical manifestation of anterior teeth. Mostly due to local obstacles in the process of tooth eruption or replacement, it often appears as a simple anterior teeth. The anti-overlay is small, and the molars are neutral or close to neutral. The shape and size of the mandible are basically normal, there is no obvious abnormality in the upper and lower jaws, the ankle is not protruding, and the face is basically normal. The lower jaw can retreat to the anterior teeth to the blade. X-ray cephalometric measurement of bone morphological abnormalities, easy to correct, good prognosis.
Hard tissue resembling teeth in the jaw: common in dental tumors (oral and maxillofacial surgery), a odontogenic tumor that grows in the jawbone and is formed by abnormal development of one or more tooth germ tissues. The number of various tooth germ tissues or teeth at different developmental stages may vary from one to several tens of, and the shape may be irregular. It may be similar to normal teeth, or may have no shape of teeth, but is composed of a disorderly hard tissue. It is surrounded by a fibrous membrane, and irregular enamel, dentin and cementum are arranged under the microscope. When the patient has diseases such as mandibular ameloblastoma and maxillofacial giant cell tumor, the patient may have symptoms of jaw bulging.
