The best time for adenoid facet orthodontics is between the ages of 8 and 10 for functional orthodontics, and between the ages of 12 and 16 for fixed orthodontics. Functional orthodontics at the age of 8 to 10 years old is mainly to change the bad habit of mouth breathing, improve the development of facial jaws, and correct some abnormal development in time. The prognosis of bad habits and local dysfunction should be carried out in time during the pre-growth period. Between the ages of 12 and 16, all the teeth have been replaced by permanent teeth, which is in the critical period of development, and the jawbone is more plastic, so certain results can be achieved quickly through orthodontic treatment. Through the correction of malocclusion, we can correct the anterior protrusion of maxillary teeth and the posterior retraction of the lower jaw caused by adenoidal facies. If you have adenoid facies, you should consult the doctor in time, complete the examination, and standardize the treatment under the guidance of professional physicians.