The whole process of tooth decay extraction includes local anesthesia, tooth extraction and hemostasis. 1. Local anesthesia: Before tooth extraction, anesthesia drugs (such as lidocaine, ativan, etc.) are used to locally anesthetize the surgical area. Anesthesia methods mainly include mucosal infiltration anesthesia and nerve block anesthesia, which can effectively avoid the symptoms of pain and discomfort that occur during tooth extraction. 2. Tooth extraction: after successful anesthesia, the teeth will be gradually loosened with special extraction tools (such as extraction forceps, dental extractors, etc.) and then completely extracted from the alveolar sockets. 3. Hemostasis: After the tooth is extracted, depending on the size of the wound and the degree of bleeding, compression or surgical suture is applied to the wound to stop bleeding and promote rapid healing.