Zhang Wei's orthodontics looks good now, which brings the beautiful appearance of teeth and improves Zhang Wei's occlusal function. Zhang Wei's orthodontics is gradual, so it is less harmful and will not cause obvious damage to teeth and oral health. But it may also cause the following sequelae and hazards:

1, Toothache: Because some orthodontics need to rely on external forces to change the position of teeth, the movement and collision between teeth will cause bone remodeling and periodontal soft tissue remodeling, thus affecting the teeth nerves and causing toothache;

2. Root resorption: The teeth are continuously subjected to external force, which may cause compensatory changes, such as gradual absorption and shortening of the roots;

3. Gingival atrophy: Because the gums may be excessively tight during the correction process, the gums may be stimulated for a long time, which may lead to gingival atrophy;

4, alveolar bone absorption: alveolar bone can be absorbed due to forced compression, which leads to the reduction of alveolar bone wrapping on teeth;

5. Loose teeth? Excessive orthodontics may lead to periodontal disease, which may lead to tooth loss of support in severe cases, and then lead to tooth loosening or even falling off;

6. Inducing oral ulcer: Irregular steel wire or invisible appliance and other hard objects are easy to scratch the oral mucosa, and even induce oral ulcer.