Caries is found on a tooth where we cannot or do not need to repair it. For the needs of orthodontic treatment.     1. Apply local anaesthesia to let the teeth and oral tissues to get numb. 2. Use dental tools to take the tooth out. 3. Tightly bite on a piece of gauze or cotton roll to help stop bleeding.   Not rinse your mouth vigorously Not disturb the wound with your tongue or fingers Not use alcoholic beverages Not do heavy exercise Not smoke Take pain control medication as recommended   Generally speaking, the wound will gradually heal in 3 to 4 days after the extraction. If discomfort persists even after 4 or 5 days, you should ask your parents to bring you to the dentist for a detailed check-up.