The whole process of tooth extraction is roughly divided into three steps: separation under local anesthesia, loosening of the tooth, extraction and scraping of the socket. 1. Local anesthesia separation: first, according to the patient’s affected tooth site and the degree of difficulty to choose the appropriate anesthesia method for local anesthesia. After the patient’s anesthesia takes effect, the extraction is carried out. Afterwards, the gums and teeth are separated. After separating the gums, it is necessary to provide space for placing the dental pliers on the teeth behind. 2. Loosening of the tooth: After loosening the tooth to a certain degree with a toothpick, the toothpick is placed and the tooth is extracted from the socket of the extracted tooth. The tooth is extracted by alternating the three forces of shaking, pulling and twisting. Depending on the shape of the tooth, these three forces should be used appropriately to ensure that the entire extraction process is completed smoothly. 3. Scratching the alveolar fossa after extraction: After the tooth is removed, the patient should check whether the root is intact and whether there is any broken root. Alveolar socket with or without gingival tear, inflammatory granulation tissue. If it affects the later stages, it must be repaired to ensure the prognosis of the affected tooth. Afterwards, the alveolar socket is scratched and the socket is scraped clean. Medications are placed in the alveolar sockets depending on the post-extraction condition.