You cannot brush your teeth, rinse your mouth or exercise vigorously within 24 hours after tooth extraction, and you can brush and rinse your mouth after 24 hours, but it is also not recommended to touch the wound of tooth extraction with toothbrush to avoid damage and infection. Therefore, it is necessary to avoid infection after the clot is dislodged, so you cannot brush or rinse your teeth in the short term after tooth extraction. Chewing food. If there is food residue and soft scale in the mouth, you can rinse with mouthwash with anti-inflammatory function, such as rinse with concentrated tinidazole to reduce the number of bacteria in the mouth and prevent the infection of tooth extraction wound.