Many children’s mothers come to me to do orthodontics for their children will ask me: why I and the child’s father teeth are quite good, the child’s teeth how so poor ah. Of course, this problem is difficult to explain in simple words, talking about this may have to first talk about the ancestors tens of thousands of years ago, about evolution, about genetics …… estimated that after talking about everyone should also fall asleep. However, in addition to these reasons, there is an important reason may lead to children’s teeth are not aligned, the face is unsightly, that is: bad oral habits! Parents, please remember the following passage: Lower teeth in the front of the ground, as soon as you find it, look at the front teeth can not bite up is open, to prevent tongue is the key maxillary protrusion and buck teeth, treatment of lip biting and rhinitis children worm teeth should not be taken lightly, affecting the replacement of permanent teeth children always use one side to eat, the chin and face is easy to deviate bad habits to pay attention to, do a good job of prevention is the key The following I will explain the above words: lower teeth in the front of the ground, as soon as you find it If the lower teeth are covering the upper teeth, then parents must pay attention to this, it is called “anti-coincidence”, commonly known as “earth encircling the sky “and must be rushed to the hospital for examination. 1, the teeth are inverse together 2, China’s most famous ground bun Tian Zhu Yuanzhang Formation of inverse together for many reasons: 1, genetic factors Ancient German emperor Hohenzollern is inverse together, his seventh generation in 13 descendants, 12 is inverse together. Therefore, it is important to inquire about family history in the treatment of anticommutation. 2. Bad habits. (1) Wrong way of breastfeeding. Remember not to let the child lie flat for breastfeeding. When the child is lying down to suck the milk, the chin will actively extend forward in order to suck the milk, which will lead to the lower jaw wrapping around the upper jaw to form a floor. (2) Upper lip biting habit Many children will bite their upper lip after being aggravated. This may lead to backbite after a long time. (3) Enlarged tonsils Some children have enlarged tonsils that cause breathing problems, so they have to stretch their jaw forward to breathe smoothly. (4) Biting fingers (especially the index and middle fingers) Biting fingers may pull the jaw forward and lead to retroflexion.