White bone in the gum after tooth extraction may be a fractured root after extraction, a foreign body such as tartar or debris in the alveolar socket, or a root spacing. Therefore, careful examination and treatment should be carried out after tooth extraction. After tooth extraction, the extracted tooth should be checked to see if it is complete, and for multiple teeth and multiple root stumps extraction, the number of roots should be checked to see if they match. Check if there is any tear in the gum, and if there is a tear in the gum it should be sutured to avoid postoperative bleeding. Probe the alveolar sockets with a scraper to see if there is any foreign body, tartar, debris, calculus, etc. or granuloma should be scraped away to avoid postoperative bleeding pain or infection, which may affect the healing of the extraction wound. The alveolar sockets are enlarged to varying degrees due to the extraction action, and the fingers should be padded with gauze or cotton balls to do buccolingual compression to reset them, and if there is a fracture of the alveolar bone wall, it should also be compressed and reset. However, if the fracture fragment is already free and detached from the periosteum, it should be removed. Excessively high alveolar septum, bone ridge or alveolar bone wall will prevent wound healing and cause pain hindering denture repair, and should be trimmed with occlusal forceps. The above content is for reference only, please refer to the doctor’s face-to-face guidance for specific medication and treatment.