Children’s teeth gap is too large for orthodontic treatment, it is recommended that patients go to the hospital in a timely manner, to identify the causes, and then carry out symptomatic treatment. 1. Normal phenomenon: generally due to the development of the upper and lower jaws during the tooth replacement, resulting in children’s new teeth between the gap is larger, this is a normal situation, without special treatment, conducive to the future of the new permanent teeth aligned, and with the replacement of both sides of the teeth, the gap can also be closed. 2. Multiple teeth: Generally, the gap between other individual teeth is relatively large, it may be the case that children have multiple teeth, the gap between the newly replaced teeth becomes larger. It is recommended to go to the hospital in time to confirm the diagnosis, extract the supernumerary teeth, and under the guidance of the doctor, orthodontics, so that the teeth back to normal. It is also recommended to pay attention to oral hygiene, diligent brushing and rinsing, develop good hygiene habits, pay attention to nutritional balance, can eat more food such as milk, tofu, carrots, etc., to supplement the body’s absorption of vitamins.