Broken incisors should be judged according to the site and degree of breakage, and firstly, a photographic examination should be performed. If the root is broken, it should be extracted; if the crown is broken, it should be extracted if it is deep under the gum; if the broken part is the crown and it is not deep under the gum, it can be treated and restored after treatment. Generally, if the gum is exposed to the pulp, you can do root canal treatment first, and after the root canal treatment, use the pile crown to repair; if there is no exposed pulp, use the porcelain crown to repair directly. The principle is to try to save the affected tooth, not easily extracted, unless the tooth is extracted as a last resort, generally can be retained, try to retain the affected tooth, treatment later restoration, which will also reduce the patient’s pain, but also reduce the patient’s costs.