Tooth extraction is a common treatment in the oral cavity. After tooth extraction, the doctor will tell you the cautions related to tooth extraction, mainly including: 1. 2. You cannot brush your teeth and rinse your mouth within 24 hours because a blood clot will be formed at the location of the extracted tooth, and once you brush your teeth and rinse your mouth within 24 hours, you may get rid of the blood clot and cause re-bleeding at the extracted tooth or infection of the extracted tooth. 3. You can eat two hours after tooth extraction. Generally, you should eat something warm and cool, and try not to chew food on the side of the extracted tooth, but on the opposite side. 4. For the extraction of blocked wisdom teeth, sometimes it is necessary to cut and suture them. Generally, after five to seven days, the wound recovery should be reviewed and, if necessary, the sutures should be removed. 5. The most important thing after tooth extraction is to prevent infection of the extraction wound. After 24 hours, mouthwash and spray can be used to maintain oral hygiene and prevent infection of the extraction wound. 6. Within 5 days after tooth extraction, it is forbidden to smoke. It is also forbidden to eat something stimulating. The most important thing after tooth extraction is to prevent infection of the extraction wound, and generally the extraction wound will grow flat after three months, and then you can have restorative treatment such as dental implant or dental veneer.