Buck teeth extraction is generally safe in a regular hospital. The hazards and “side effects” of buck tooth extraction are no different from those of normal tooth extraction, and generally the wound will heal quickly after extraction. However, there are a few people who have complications (side effects) after tooth extraction for some reasons, such as bleeding after extraction, wound infection, displacement of some teeth, dry socket and so on. 1. Bleeding: Elderly people with high blood pressure and arteriosclerosis bleed easily after tooth extraction, and there are also cases of bleeding after tooth extraction due to inflammation of periodontal tissues or tearing of gums and fracture of alveolar bone during tooth extraction. Bleeding after tooth extraction caused by systemic diseases, in addition to local treatment, laboratory tests should be done to find out the cause and treat the cause and symptoms. 2. Wound infection: some patients will have wound infection after buck tooth extraction, resulting in facial swelling, this phenomenon will last for about 12 to 24 hours, and the more serious ones may disappear within 2 to 3 days. 3. Shifting of some teeth: After buck teeth extraction, some teeth may shift due to long time missing teeth. 4. Dry socket: It usually occurs 2 to 3 days after tooth extraction, manifested by decomposition and shedding of blood clots in the alveolar fossa, emptiness of the alveolar fossa, exposed bone wall, bad breath, severe pain radiating to the ipsilateral ear and temporal region. Buck teeth extraction should follow the doctor’s instructions to do a good job of post-care, so as not to cause adverse reactions.