When a wisdom tooth is extracted and a small part of it is broken, depending on the size of the broken root, you can choose to let the broken root resorb on its own or remove the broken root. 1. Let the broken root resorb on its own: If the broken root is relatively small within 5mm, it can generally resorb on its own, and even if it is retained in the alveolar bone and does not resorb, it will not have any adverse effects. If the broken root is close to the maxillary sinus or adjacent to the inferior alveolar nerve canal, blindly removing the broken root may cause damage to the tissue. 2. Remove the broken root: the broken root is larger than 5mm or the length is more than 1/3 of the root, in this case, the broken root can’t be resorbed by itself, it is better to take a picture to clarify the location of the broken root, and then remove the broken root. Wisdom teeth extracted broken a little, it is best to go to the hospital in a timely manner to take a dental apical film to determine the size and location of the broken root, and then choose the best treatment plan, so as not to affect the healing of the extraction wound.