The baby’s newly erupted teeth are white, but a careful mother will find that the white milk teeth somehow appear one by one small black spots. Why are the baby’s milk teeth blackened? After the appearance of small black spots, the first reaction of mothers must be to think: “Oh, is it because I did not brush my baby’s teeth carefully?” At this time, the mother will brush the baby’s teeth more carefully, and these little black spots on some babies’ baby teeth will slowly decrease. But for some babies, no matter how carefully the mother brushes her teeth, these little black dots will become more and more, and some of them even become pieces. However, the appearance of the black dots does not seem to affect the appearance of the baby’s teeth, except for the symptoms of tooth pain. So should you take it to the dentist? If the mother takes the baby to the dentist, the pediatric dentist may give a diagnosis of simple hyperpigmentation of the baby’s teeth after a careful examination. What are the causes of simple hyperpigmentation? Simple hyperpigmentation of milk teeth can be caused by the following factors: 1. The surface of the teeth is not smooth due to developmental reasons The enamel on the surface of the teeth is just like the enamel on the surface of ceramics, there are differences in smoothness, and the enamel with a smooth surface is easier to clean and less likely to have pigmentation. Some baby teeth, the surface enamel is not smooth, there may be some small depressions, such teeth are easy to deposit pigment, and not easy to clean. 2, and the baby’s own physique, for example, and the baby secreted saliva composition, the amount of saliva, the flow rate of saliva and other related. Babies with relatively high mineral content in saliva, low saliva volume and slow saliva flow rate are prone to dental pigmentation. Pigmentation is also related to the type of bacteria planted in the mouth, some babies have bacteria that can easily produce pigmentation in the mouth, which may also cause tooth pigmentation. 3, and the type of food eaten Chinese medicine, sticky colored food is also the cause of tooth pigmentation. Mothers do not need to rush, if only simple tooth pigmentation, you can remove the pigmentation by the following methods: 1, only a small area of individual teeth pigmentation can not be treated, mothers only need to carefully and carefully brush the baby’s teeth on the line, if necessary, you can use children’s toothpaste with pigment removal effect. 2.If most of the baby’s teeth have a large area of pigmentation, which may have a bad effect on the baby’s psychology, then it is recommended that mothers take their babies to the hospital for regular dental cleaning. (The main method used here is sandblasting to remove pigmentation)