There are many ways to treat black spots on the surface of teeth. If the black spot is on the front teeth or the back teeth, the black spot will continue to exist after the dental cleaning, and there may be superficial caries, so the necrotic tooth tissue should be removed and filled, so that the black spot can be removed and the beauty and function can be restored. If the black spot occurs in the shallow layer of anterior teeth, it can be restored as before after scaling. However, if the defect is superficial, it can be removed with photosensitive resin filling to restore the color, structure and luster of the tooth. If the defect is relatively large, causing tooth loss and seriously affecting the aesthetics, dental veneers can be done.