Tooth dislocation

Introduction A tooth that is affected by an external force and is separated from the alveolar socket is called a tooth dislocation. Due to the different magnitude and direction of the external force, the performance and degree of dislocation of the teeth are different. The lighter shifts away from the shift, which is called incomplete dislocation; the severe one can be completely isolated, called the full dislocation. Tooth dislocation type dislocation and tooth displacement can be seen that the teeth are elongated, tilted or displaced, loosening II0-III0, there may be sulcus oozing, the crown is not broken and the defect, the temperature test response is different, the tooth displacement can be accompanied by Alveolar fracture. Dental embedding dislocation: the clinical crown of the affected tooth becomes shorter or disappears, may be accompanied by displacement, torsion or anti-jaw relationship, sulcus sulcus, sputum pain (+++), may be associated with alveolar fracture.

Cause

Cause: A sudden history of external impact, according to the direction of the external force, there may be teeth out, embedding in the direction of the apex or lip (tongue) shifting. Partial dislocation of the teeth often shows pain, looseness, and displacement, and occlusion is caused by the elongation of the teeth.

an examination

Related inspection

Oral endoscopic oral X-ray examination

Examination of dislocation of the teeth

Under the impact of a large violent attack, the tooth may be partially or completely dislocated. Due to the tear of the periodontal ligament, even the neurovascular bundle entering the pulp from the apical foramen also tears, and the tooth loosening, tilting, elongation and clinical appearance occur. Pain, hinder chewing. When the teeth are completely dislocated, the teeth are separated from the alveolar socket, or only the soft tissue is connected, often accompanied by gingival tears and alveolar bone fractures.

Differential diagnosis

Symptoms of dislocation of the teeth

Tooth occlusion disorder: The occlusal relationship between the upper and lower teeth is often disturbed by the displacement of the jaw fracture. This is the most obvious symptom of the jaw fracture and is of great significance for the diagnosis of jaw fracture. The mandibular transverse fracture, the fracture segment is displaced downward, so that the maxillary posterior teeth and the mandibular posterior teeth are in early contact, so that the anterior teeth are in an open occlusion state. After the mandibular fracture, due to the displacement of the fracture segment, the occlusal relationship of the teeth is disordered. If there is no displacement of the fracture segment, there is no obvious confusion in the tooth occlusion.

Loose teeth and shedding: refers to the loosening of the teeth caused by external impact, periodontal disease, gum atrophy, nutritional aging of the old gums, etc., causing tooth loss after severe. Most adults suffer from periodontal disease. Most periodontal diseases progress slowly. Most of them are gingivitis at the beginning. There are not many symptoms other than occasional brushing, so it is not noticeable. The development of gingivitis to a certain extent is periodontitis. At this time, severe oral odor can occur, the abscess is repeated in the periodontal period, the teeth are loose, the teeth are getting bigger and bigger, and the teeth are getting sparse. If the patient is seen at this stage, the doctor can control the deterioration of inflammation, but the damaged periodontal tissues (including gum atrophy) are irreversible and difficult to recover completely.

Abnormal teeth: The development of human teeth is a complex and lengthy process. In this long process, various unfavorable factors inside and outside the body can cause different types of developmental abnormalities in different stages of tooth development, such as abnormal teeth eruption, abnormal number, abnormal morphology and abnormal tooth structure.

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