After an 8 year old child has a baby tooth removed, the gums usually heal substantially in about 7 days, subject to individual variation and not generalizable. After an 8 year old’s baby teeth are removed, a blood clot will form to cover the alveolar fossa in about 1 hour. In 2~3 days after the extraction of the gingival connective tissue extension, narrowing the wound, while capillary proliferation, blood clot mechanization, about 7 days of basic healing of the gums. At the same time, observe the emergence of replacement permanent teeth. It is important to note that when loose milk teeth should go to the hospital stomatology department, after the doctor examination, to decide the next step of the treatment plan. At the same time try not to let the child eat hard food, and pay attention to the child’s oral hygiene, must supervise the child every morning and evening brushing, rinse mouth after eating in a timely manner.