Tooth extraction is the most commonly applied treatment technique in dentistry today. It is recommended that tooth brushing should not be performed immediately after tooth extraction, but after 72 hours depending on whether the gums are bleeding, painful and the recovery of the trauma. After extraction, the tooth is freed from the alveolar bone and a bleeding trauma is formed on the gums as well as on top of the alveolar bone, which are not covered by normal tissues. Premature brushing can re-injure these tissues, allowing small blood vessels to rupture and sustained or severe bleeding to occur. The pain after tooth extraction dictates that brushing should not be done too early. After an extraction, especially after the anesthetic wears off, there is painful discomfort in the location of the extraction. The brushing process can cause mechanical irritation to the extraction site, causing an increase in pain that is unbearable. Generally speaking, the post-extraction pain will disappear in about 48-72 hours. At this time, you can brush your teeth gently as appropriate. The traumatic surface of a tooth that has been extracted generally takes some time to recover. The gum area will heal faster than other parts of the body because of the rich blood supply to the tissues. Despite this, it will take some time to recover, usually about a week to fully recover. Brushing your teeth too early may make it difficult for the trauma to heal due to mechanical irritation, bacterial invasion, and other problems. However, the oral hygiene needs to be solved, so the brushing time can be appropriately advanced, and it is not necessary to wait until the trauma is completely healed. This time needs to be decided according to personal feelings and the doctor’s observation of the trauma recovery during the follow-up consultation, and cannot be generalized. The choice of brushing time after tooth extraction should be decided according to personal feelings and the specific situation of the trauma. 72 hours is a safer time in most cases. Considering the oral hygiene, you can rinse your mouth with saline or special mouthwash after 24 hours.