Extrinsic stains on teeth are caused by:

Extrinsic stains on teeth are primarily caused by environmental factors, such as the consumption of certain types of food and drinks. Substances like coffee, tea, red wine, and certain fruits can deposit pigments onto the enamel, leading to discoloration. These stains originate on the exterior surface of the tooth enamel and can often be removed through professional dental cleanings or good oral hygiene practices.

Genetic factors typically influence the natural color and structure of teeth, rather than causing specific staining. While medications can indeed affect tooth coloration, they are generally linked to intrinsic stains, where the discoloration occurs from within the tooth structure. Certain dental procedures, while potentially leading to changes in tooth appearance, are not a primary source of extrinsic staining. Thus, environmental factors like food and drinks are the main contributors to extrinsic stains on teeth.