After extraction of wisdom teeth, you need to strictly follow the post-extraction precautions. The mucosal wound on the surface of the extraction wound heals in 5-7 days. During this healing period, blood coagulation occurs in the extraction wound, blood clots are mechanized, and granulation tissue is gradually formed. It takes about 3-6 months for the extraction wound to heal completely. About 20 days after the extraction, the granulation tissue will be replaced by more mature fibrous connective tissue, and resorption and reconstruction of the alveolar bone will occur, and about 3 months later, bone will form in the alveolar socket. However, at this time, the bone tissue is immature and the bone density is low. About 6 months after the extraction, the bone resorption and bone reconstruction are basically completed, and only at this time will the normal bone tissue be presented, which belongs to the complete healing of the tooth extraction wound.