Small black spots on teeth can be removed, and pigmentation on smooth surfaces such as lip and tongue can be removed by sandblasting or polished after rubbing with a smooth needle. The black spots located in the sulcus of the posterior surface of the teeth are due to the foreign pigmentation such as tea stains, tobacco stains, coffee stains, etc., which sometimes form cavities, and can be filled with flowing resin or glass ionized cementum after grinding and preparing the cavity shape with high-speed fracture drill. If the black spot on the tooth surface is dark plaque formed by fluorosis, it can be restored by tooth preparation and bonding after making all-porcelain veneer.