Not brushing your teeth within 3 days after extraction is fine and usually does not cause too much problem. The doctor will order not to brush your teeth for 3 days after extraction, which is to protect the tooth bed or trauma to prevent bleeding. Although you cannot brush your teeth, you can use water to rinse your mouth after eating to prevent food debris from getting stuck in the gap of the tooth or from causing bacterial infection by remaining in the mouth for a long time. Usually, if there is no abnormality in tooth extraction and there is no severe pain, redness, swelling, inflammation and other uncomfortable symptoms within 2-3 days after tooth extraction, you can properly use toothbrush, just be careful to avoid the tooth socket when brushing. Do not choose overly stimulating toothpaste or electric toothbrush to avoid irritation to sensitive gums. Under normal circumstances, if there is no bleeding and other abnormal conditions, you can generally brush your teeth after 2-3 days of tooth extraction, but long-term non-brushing is not conducive to the maintenance of oral hygiene and wound healing. In addition, after tooth extraction, you should pay attention to avoid eating spicy, hot and hard stimulating food, such as hot pot, barbecue, fried food, and sweet food such as cake and chocolate, so as not to stimulate the mouth and cause wound infection. If the bleeding is serious or the pain is severe after tooth extraction, it is recommended to follow up or consult the doctor in time, and then choose further treatment measures according to the recovery status of the wound.