You can usually brush your teeth after 24 hours after wisdom tooth extraction in the lower jaw. Normal post-extraction medical advice includes compressing the extraction wound for 30-40 minutes after surgery, not brushing or rinsing your mouth, not sucking on the extraction wound or licking the extraction wound with your tongue for 24 hours after surgery, and not making the mouth a more intense negative pressure environment. Because all these may irritate the extraction wound, which may cause 2 bleeding after tooth extraction. In terms of eating after tooth extraction, it is generally recommended to eat warm, cool and soft food, and not to eat too hot or too hot food, again to avoid irritating the extraction wound. Generally, 24 hours after tooth extraction, the extraction wound will be relatively stable and you can brush your teeth normally, but you should be careful not to brush the bristles or brush head deeply into the extraction wound.