Children with large gaps between their sparse teeth may be a temporary manifestation caused by jaw development, which can be observed until the completion of the replacement period at about 12 years of age, and if there is still no improvement, orthodontics can be considered according to the situation. 1. Observation. Children’s sparse teeth gap is generally due to the period of milk teeth jaw, jaw growth, as well as in the replacement period caused by the temporary gap wide, generally in the complete replacement of teeth after the completion of the gap can be slowly closed. 2. Orthodontics. After the completion of the replacement period, if there is still a gap between the teeth, it may be caused by overdevelopment of the jawbone or congenital missing teeth, it is recommended that, after the completion of tooth replacement, go to the hospital for orthodontics or denture repair. For children with large gaps between their teeth, it is recommended to go to the hospital first to check the specific causes and then deal with the situation accordingly.