Invisible orthodontics refers to the fact that patients with braces are difficult to be seen by people around them in their daily lives, hence the term invisible orthodontics, also known as aesthetic orthodontics. It can achieve the purpose of orthodontics, but also greatly meet the requirements of patients for the aesthetics, comfort and convenience of the aligners. Compared to traditional orthodontic braces, invisible orthodontic technology does not require brackets and wires and does not affect daily life and social life, and has been favored by more and more beauty lovers in recent years, but may also produce the following risks: 1. damage to orthodontic teeth or adjacent teeth, resulting in postoperative pulpal necrosis, which may be treated twice, is extremely rare; 2. patients may experience some discomfort after surgery, especially when chewing 3. If the intraoperative environment is not sterile, the postoperative recovery is poor, which may lead to the risk of postoperative infection and inflammation; 4. If the degree of tooth malformation is more serious, the intraoperative damage is relatively large, and postoperative bleeding is possible. Postoperative bleeding is a more serious risk, and once it occurs, it needs to be dealt with immediately; 5. Different degrees of swelling reactions may occur in the lower part of the postoperative area, and some patients may have adverse reactions such as anesthetic allergy and slight pain.