Mainly suitable for deciduous teeth. Early correction is beneficial to maxillary development and prevents permanent crossbite. If the child has bad habits (such as sticking out his tongue and biting his lips). ), can also be corrected at this stage.

Second, mixed dentition stage (girls: 8- 10 years old, boys: 9- 12 years old)

It is suitable for early patients with functional malocclusion and skeletal malocclusion caused by bad living habits and tongue interference. If you find that your child has bad habits (such as biting his lips, sticking out his tongue and stretching his chin). ), abnormal face and abnormal tooth arrangement, you should take your child to the hospital for examination in time and consult an orthodontist.

Third, the early stage of permanent teeth (girls:114 years old, boys: 13- 16 years old)

Common malocclusion can be well treated at this stage. At this time, most of the permanent teeth in the mouth have erupted, the development of dental arch is basically completed, and the irregular teeth are basically shaped; Moreover, the maxillofacial development of children in this age group is still in a period of rapid growth and development. Orthodontics needs to make use of the growth and development potential of maxillofacial region to make tooth movement and alveolar bone reconstruction reach the best level.