Patient: There are a lot of black spots on the teeth of the toddler since he was four years old, which will be reduced by brushing with toothbrush, but there are still more and more on the teeth now, and recently found that the gums of two teeth to be replaced are black.
Yang Jie of Pediatric Dentistry of Peking University Stomatology Hospital: There are two possibilities for the “black spots” on teeth: one is tooth decay, this “black” cannot be reduced by brushing, and it will form a “hole”. It needs to be treated, especially for four-year-olds, because the milk teeth of children in this age are still relatively early to be replaced. Secondly, pigment can be partially removed by brushing, for children, the pigment is related to dietary characteristics and oral hygiene, the presence of pigment on the tooth surface will not form “hole”, but will make the tooth surface not smooth, which is conducive to the formation and attachment of plaque and easy to occur caries. If the child is not very cooperative with the treatment, it can be observed under the condition of maintaining oral hygiene. Suggestion: After going to hospital for examination, determine whether it is caries or pigmentation before feeling the next treatment. Yang Jie, Department of Pediatric Stomatology, Peking University Stomatological Hospital