Love of beauty is not just for adults! Children also need it, and its importance cannot be ignored during their development. A smile from the heart is always the most beautiful! And the most important part of a smile is white teeth. The most important component of a smile is white teeth. A mouthful of “black teeth” makes it impossible to smile with confidence! Due to the structure of teeth and children’s diet and oral hygiene behavior, children often have discolored and darkened teeth, which affects the aesthetics and function. We can simply divide children’s teeth darkening into 3 categories: 1, exogenous pigmentation: in layman’s terms, is the food, drinks, drugs, etc. were ingested after part of the residue on the teeth, not timely and effective cleaning to remove, over time, it is precipitated on the teeth, so that the tooth surface coloring. However, the original structure and inner color of the teeth do not change in any way. Such a situation can be solved by professional dentists for scaling or polishing. 2, endogenous tooth discoloration: often occurs in the teeth that have been traumatized, the main reason is the pulp (dental nerve) necrosis, other causes of pulp necrosis can also make the tooth discoloration. In this case, root canal treatment is needed to remove the necrotic pulp tissue and carry out aesthetic restoration. 3.Dental decay (tooth decay) leads to the destruction of tooth structure and makes the tooth black: the most important characteristic is that besides the color change, there must be the destruction of tooth structure. In this case, it is necessary to carry out filling (filling on crown restoration treatment) or even endodontic root canal treatment to repair the defect and restore the beauty according to the specific situation. Regardless of the type of blackened teeth, parents should seek timely guidance and treatment from a professional dentist and take appropriate preventive measures for the specific case so that their baby can have a healthy, bright smile!