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Three reasons for the formation of infants and young children:

1. It is caused by genetic factors. If one of the parents has a reverse jaw, the baby has the possibility of heredity. This possibility accounts for 1/3;

2. Inappropriate feeding methods, the family factor of infants with deciduous teeth is that the parent's feeding posture is incorrect. When the parents are feeding, if the bottle is held too high, the baby must extend the jaw to drink the milk. Over time, the jaw will be blocked. It is more prominent than the upper jaw, forming a reverse jaw;

3. Improper parenting methods, such as allowing the baby to develop bad habits such as frequent finger sucking, lip biting, biting, tongue out, and jaw extension, and the use of the pacifier for too long.

The editor emphasizes: The overall goal of orthodontic treatment is balance, stability, and beauty. These three must be an organic combination, and none of them are indispensable. If the deformity is not treated in time after it occurs, it will become more and more serious as the person ages, resulting in a mandibular protrusion and a depression in the middle of the face, which greatly affects the balance and stability of the jaw occlusion and the beauty of the face.