How long does it take to remove cotton after tooth extraction?

After normal tooth extraction, the doctor will put hemostatic cotton on the tooth extraction wound. It can be spit out after 30 minutes of tooth extraction. It is not recommended to bite for too long. Generally, it should not exceed one hour, otherwise it will lead to ischemia in the tooth extraction area, which is not conducive to the healing of tooth extraction wound. If the tooth extraction wound is relatively large, the doctor will put hemostatic cotton in the tooth extraction wound. It has anti-inflammatory and wound healing effects. It will fuse with blood clots. The patient does not need to deal with it.