1, milk teeth are to be replaced, caries do not need treatment. Caries in milk teeth need to be treated as early as possible. Some parents are afraid that the child is small, can not cooperate, often make caries further development, more harmful. From a few months to 3 years old, the child’s milk tooth caries can be perfected at the pediatric dentist. Milk teeth caries need to be treated, mainly because milk teeth caries is not treated, there are serious harm: (1) milk teeth caries, serious damage to the structure of the teeth, affecting chewing and eating, affecting the child’s nutrient absorption and development of the whole body, affecting the development of the child’s jawbone; (2) serious milk teeth caries, but also affect the following successor to the permanent teeth of the development and eruption, resulting in defective development of the teeth and eruption of the anomalies, and ultimately lead to malocclusion. (2) Severe dental caries can also affect the development and eruption of the succeeding permanent teeth below, resulting in defective development and abnormal eruption of teeth, and finally leading to malocclusion. Dental caries also affects the aesthetics and pronunciation of the child, and has an impact on the normal psychological development of the child. (3) Severe dental caries, Streptococcus pyogenes will enter the blood circulation, affecting the heart, kidneys and other organs of the body. It can be seen that the harm of early caries in infants and young children is serious, should cause us to pay attention to, active and timely treatment is very necessary. 2, children can brush their own teeth, do not need adult help. This view is wrong. Generally from the child eruption of the first teeth, should be for the child oral cleaning; one week old, began to brush the child’s teeth; 3 weeks old, began to use toothpaste. Because of infancy, the child’s behavioral ability is limited, and brushing is a fine action, so parents should clean the child’s teeth during infancy and early childhood. In fact, throughout the preschool period, it is also parents who clean their children’s teeth. 3, milk teeth reverse occlusion does not have to be corrected immediately, wait for 12 years old teeth are replaced before treatment is not too late. This point of view is wrong, milk teeth reverse occlusion should be treated as early as possible and in time. Teeth backbite, the main two aspects of the impact, one is to lead to the maxillary development is limited, affecting the face and beauty; second is the joints will have a negative impact on the adult temporomandibular joint disease occurs to lay a hidden danger. 4, the child is not easy to fall asleep, sleep with a bottle is a good method of hypnosis. This practice is wrong. Because when you fall asleep, the liquid in the bottle will become an excellent culture medium for caries-causing bacteria in the mouth; in addition, the carbohydrates in the liquid in the bottle will be broken down by bacteria to produce acid, which will erode the teeth and form dental caries, and many serious cases of early caries in infants and young children in the clinic have a history of this disease. It can be seen that sleeping with a bottle is a bad feeding habit. 5, breastfeeding is the best way to feed, so you can extend the feeding. This view is wrong. 6 months of breastfeeding is the best, but after 6 months, the nutrients in breast milk can not fully meet the child’s growth needs. And prolonged breastfeeding is often an important cause of the development of early caries in infants and young children. Clinical many ECC cases have a history of prolonged breastfeeding, some extended to 2 years old, 3 years old. 6, as long as the child likes bottle feeding, can be fed until 3 years old. This view is wrong. Bottle feeding can be done up to 1 1/2 years old at the latest, in fact, when the child is 10 months old, you can exercise the child to start using a cup. If bottle feeding is prolonged, even to the age of 3, it often leads to severe early infant caries. 7, life is better, the child likes to eat snacks just let him eat. This view is wrong. Snacks are often rich in sucrose, increasing the frequency of eating, which also increases the risk of dental caries. Snacks are best eaten after meals and never before bedtime. Snacking before meals interferes with a child’s normal meal and is also not promoted. If you eat snacks during the time between meals, you should pay attention to oral cleaning after eating. 8, the child to the time when the teeth should erupt, the teeth must erupt. The timing of tooth eruption varies greatly among individuals, so it will be different among children. But as long as in the normal eruption time range, is normal. 9. Infant teeth are fine and do not need oral examination. This view is wrong. The first oral examination for infants and young children should be after the eruption of the first tooth, at the latest before 12 months. Because, through the oral examination, you can know whether there are bad feeding habits, whether there is early oral disease damage, prevention is better than cure.