There are two main types of teeth stains, which are extrinsic and intrinsic teeth stains. These affect a person’s tooth differently, and the causes and treatment for these types of discoloration are different.
Extrinsic teeth stains
Extrinsic means that the outside of the tooth or the enamel is affected by discoloration. This means that the inside of the tooth, or the dentin, is not directly affected by the discoloration. This can be seen as a yellow discoloration of a person’s teeth.
This is typically caused by consuming foods or substances that cause discoloration in the enamel.
These can include things such as: