If black spots appear on your child’s teeth, there are two possibilities, the first is simple pigmentation and the second is the formation of decay. For the simple pigmentation, only scaling and sandblasting is needed to remove the black spots. After the removal, you should pay attention to brush your teeth well and try to eat less colored food, such as coffee, chocolate, etc., to prevent the black spots from continuing. For the second case, if the caries is formed, then it is necessary to perform the repair of the caries. It is necessary to see a doctor in the hospital to remove all the black decay, and after the removal, the cavity should be repaired with the filling material. In addition to this, black spots on the surface of teeth may be caused by bad feeding habits and bottle caries, so it is necessary to correct the feeding habits and to brush and rinse the mouth after feeding.