1, from the medical aesthetic point of view, children sleeping with their mouth open for a long time will cause the deformity of maxillary development, which is scientifically based, but for infants, the oral development is not complete, and it is actually normal to sleep with their mouth open. After one year old, this way of sleeping without sticking your tongue to your upper jaw will naturally disappear.

2. When the mother sees that the child's tongue is not breathing with the mouth open above the upper jaw, she must first determine whether the child's breathing frequency is normal, and then listen carefully to whether the child's breathing tone is turbid. If they find themselves sleepy, they need to see a doctor at once. So as not to affect the development of children because of lack of oxygen in the brain. From the facial point of view, if children breathe through their mouths for a long time, it will also affect the development of teeth and even make them develop into buck teeth.

3, the tongue does not breathe on the palate, this method is also unfavorable to the child's health. When the baby breathes with his mouth open, it is inevitable that some dust and suspended air will enter his mouth, plus the airflow when he breathes. It will also let some dust mites on the bed breathe into the body, causing allergic symptoms.

If the child reaches one or two years old, he still sleeps with his tongue out of the upper jaw. You can give your baby a little water before going to bed and correct your baby's sleeping mouth shape in this way. At the same time, you should practice your baby's chewing ability more to make her masseter muscles more developed, or you can use an object to twitch back and forth in your baby's mouth when he breathes through his mouth, making him feel uncomfortable, forcibly changing his sleeping position and correcting his bad habits.