1, the teeth jaw is a more common malocclusion in children, the jaws of the period of the baby teeth 2 to 5 years old is the best orthodontic period, only under the guidance of doctors, wear movable aligners, correct oral habits and other simple methods of correction, 3 to 6 months to complete the orthodontic treatment. But after the replacement of teeth may appear after the replacement of the jaw, generally at the age of 6 to 12 years old need to carry out secondary orthodontic treatment. However, at this time is only the teeth jaw back, relatively easy to correct. 2, if the teeth period jaw is not corrected in a timely manner, to permanent teeth period correction is generally after 12 years old, it is necessary to use more complex orthodontic appliances, orthodontic difficulty, long time, high cost, and facial improvement is not obvious, serious orthognathic surgery must be taken to correct. Warm tip: If a child’s teeth are found to be retruded during the nursery period, it is best for parents to seize the best orthodontic period between the ages of 2 and 5 for teeth retrusion treatment.