Not corrected during the deciduous period， The opportunity for orthodontic treatment will be lost, and after tooth replacement, there is usually a continued formation of inverted teeth, and the shape of the inverted surface increases with age, making the deformity more severe. If not corrected during the growth and development period, it will grow into adulthood Although efforts can be made to correct the misalignment of teeth, severe skeletal deformities must be corrected through surgery.

)) Early correction should be carried out. In clinical practice, there are also examples where after correcting primary tooth malocclusion, anterior tooth malocclusion occurs again after the permanent teeth have erupted, requiring further correction. However, it should be emphasized that although these patients have anterior teeth in an inverted relationship, they basically belong to dental inversion rather than skeletal inversion, and it is relatively easy to correct.

It can occur during the deciduous period, mixed dentition period, and permanent dentition period. Generally speaking, the earlier the correction, the better. Some parents believe that the misalignment of baby teeth is not a problem and will correct itself after changing teeth. Is this really the case? No. Patients with retrognathia can seriously affect the growth and development of the oral cavity, face, and jawbone, causing one-third of the child's facial development to be restricted and one-third of the child's facial development to be excessive. Such children may have a crescent shaped face when viewed from the side, which affects their appearance and function.

　     Therefore Deciduous teeth retrognathia It is still necessary to correct it. In addition to seriously affecting aesthetics, patients with retrognathia also have a significant impact on their chewing function. The front teeth are unable to perform cutting function, and due to the impact of reverse occlusion on jaw movement, it will also cause a significant decrease in chewing function of the back teeth. In addition, it also affects the patient's pronunciation function, making some sounds unclear and affecting communication and learning. In summary, it is not possible to treat the condition without correction, and the earlier the correction, the better.