1. Wait until your baby is teething before you let him brush his teeth properly? The earlier you start, the easier it is for children to accept and develop good brushing habits. How to establish a good brushing habit? First of all, after the baby is born, we should massage the baby’s gums with gauze wrapped around the finger with water, and at six months when the baby starts to grow the first milk teeth, use a special finger toothbrush with light salt water instead of toothpaste to help the baby brush his teeth, at about two years old, the baby learns the basic action of brushing teeth and can brush his own teeth, the baby should choose a special toothpaste for children that contains no fluoride, and fruit flavored toothpaste will be more easily accepted by the baby. Accept, at the same time, we should pay attention to the regular replacement of toothpaste and toothbrush. 2, children’s teeth will change, there are problems do not care about it? In fact, it is not true, children will only complete the tooth replacement process when they are 12 to 13 years old, the good or bad of the baby teeth will directly affect their jawbone development, the intake of nutrition of the whole body, the development and arrangement of permanent teeth and even affect the psychological health of children, if the baby teeth are missing too early, it will make the neighboring baby teeth shift, resulting in the subsequent growth of permanent teeth do not have enough position and lead to crowding of teeth, abnormal development of jawbone, change of facial appearance, in addition, the decay will cause the root tip to develop. Tooth decay can lead to root tip inflammation, which may infect the developing permanent teeth below and lead to malocclusion. 3.Doesn’t a child need to see a doctor if his teeth don’t hurt? Since the growth and development of children need a lot of intake of food, and at the same time, due to the physiological characteristics of children’s teeth and the characteristics of children’s activity pattern, the self-control ability is weak, so it leads to the progress of children’s dental disease very fast, so whether there are symptoms or not, they should have regular dental checkups, and it is generally recommended once every six months. 4.Children are too young to wait for teeth replacement before starting orthodontic treatment? In fact, the best time for orthodontic treatment varies from person to person, mainly depending on the type of malocclusion and the growth and development of each person, while some malocclusions have a great impact on the development of the jawbone and the normal eruption of subsequent permanent teeth, resulting in facial deformities. In particular, we are commonly known as the “envelope” of the anti-jaw deformity is the sooner you start to correct the effect is more significant. 5.Does the teeth do the gutter closure equal to the insurance? Because of the physiological characteristics of children’s oral cavity and the characteristics of the material for sealing, the rate of falling off of the material for sealing will increase gradually with the extension of time, so it is more crucial for the prevention of dental caries to have regular check-ups and early detection and treatment.