Children with dark spots on their teeth should be examined to see if they have dental caries or pigmentation, and should be treated with resin fillings or cleanings after tooth preparation. 1. Dental caries. Under the action of bacteria and food debris, dental caries can be caused, shallow caries can be seen in the enamel with shallow cavities, you can use instruments to remove the blackened tooth tissue after resin filling, to prevent caries continue to develop downward. 2. Pigmentation. Children’s teeth with black spots may also be long-term eating pigmented food caused by pigmentation, general dental cleaning can be removed, cleaning can be used after the completion of the rubber wheel polishing, to slow down the pigmentation. Children’s teeth have black spots, it is recommended to go to the hospital for examination, found that the problem is dealt with in a timely manner.