Braces are usually recommended after root canal treatment of a tooth. After a tooth has undergone root canal treatment, the nerves and blood vessels etc. in the pulp cavity are completely removed and the tooth loses its nutrient supply, thus making the tooth more brittle and the tooth is prone to splintering. After braces are made, it is equivalent to making a protective cover for the tooth. It can greatly reduce the chance of tooth fracture, and will also extend its service life, so it is recommended to do braces after dental root canal treatment. In addition, teeth after root canal treatment will lose their original luster, especially the front teeth, obviously affecting the aesthetics, which can be restored to the original luster and aesthetics through braces. However, it is important to note that braces can only be done when there is no discomfort in the teeth after root canal treatment. It is recommended that patients follow the doctor’s instructions to do braces after root canal treatment, and go to the hospital in a timely manner if there are symptoms of tooth discomfort.