Black stains on teeth can be caused by pigmentation, tartar, or dental caries. If the black stain is caused by pigmentation or tartar, it can be removed by cleaning; if it is caused by dental caries, the decayed tissues should be removed in time and the teeth should be filled.
If the black stains are caused by exogenous pigmentation or tartar, ultrasonic cleaning, sandblasting and other methods can be used to remove the pigmentation on the surface of the teeth, so that the original color can be restored. After cleaning, the teeth should be cleaned properly to prevent black stains from remaining again.
If the black stain is caused by dental caries, you should go to a professional organization in time to remove the decayed tissues and the black stain attached to them, and fill the decayed teeth or root canal treatment to restore the function of the teeth. If the tooth is too decayed to be retained, the tooth can be extracted.
If black stains remain on the teeth, you can go to a professional dental institution for examination to clarify the cause of the stains, and timely treatment to prevent the stains from aggravating the situation and causing other oral problems.