What type of stains on external surfaces of the tooth are removed by brushing, scaling, and polishing?

Extrinsic stains are deposits that occur on the external surfaces of teeth and can be effectively removed through mechanical means such as brushing, scaling, and polishing. These stains are primarily caused by dietary factors, such as the consumption of coffee, tea, red wine, or certain fruits, as well as tobacco use. The removal of these stains is achievable because they are located on the surface enamel rather than being imbedded within the tooth structure itself.

Intrinsic stains, in contrast, originate from within the tooth and cannot be removed through typical dental hygiene practices. These stains may be due to developmental issues, certain medications, or trauma to the tooth, affecting the dentin and enamel layers.

Endogenous stains refer to stains that develop from internal factors, such as genetic conditions or exposure to certain drugs during tooth development, and they require different treatment approaches than mere surface cleaning.

Translucent is not a commonly used term in staining classifications and does not specifically pertain to any established category of dental stains. Therefore, extrinsic stains are uniquely identified as those removable by standard dental care practices.