Patient: The baby is now more than 9 months old, four and a half months to start teething, currently has four teeth, the upper two incisors grew out, found that the baby’s upper lip and the upper interdental ligament is located in the middle of the upper two incisors through the incisors, resulting in a large gap between the upper two teeth. Can this condition be improved by treatment to bring the gap between the upper two incisors together? Yan Lijin: I can see that you are very careful parents, the baby’s teeth began to grow, oral hygiene should also begin to carry out. It should be clear that the upper labial tether of the milk teeth is not directly related to the gap between the incisors, your baby just erupted 4 milk front teeth, when the alveolar ridge of the dental bed is very low, the attachment of the labial tether is of course very low, from the surface, the tether just through the middle of the incisors. At this time, we can observe the emergence of teeth without treatment. With the eruption of the posterior teeth and the replacement stage of permanent teeth, the alveolar bone grows rapidly and widens, the attachment of the labial ligament also decreases, and the gap between the incisors should be reduced or even disappear. If the gap between the incisors still exists after all the permanent teeth have erupted, the child can go to the hospital for a minor surgery to cut the ligaments, which can be done on an outpatient basis, without having to travel to Beijing, and orthodontic treatment to close the gap.