Whitening toothpaste can whiten teeth slightly by removing surface stains, such as those caused by drinking coffee or smoking.
Whitening toothpaste can also be used after a bleaching treatment to help maintain results. However, whitening toothpaste can't change the natural color of teeth or reverse discoloration caused by excessive exposure to fluoride during tooth development, penetrating surface stains or decay.
To remove surface stains, whitening toothpaste may include:
- Special abrasives that gently polish the teeth
- Chemicals, such as sodium tripolyphosphate, that help break down or dissolve stains