Keeping your teeth healthy is great, but, to enhance kissability, teeth should be as white as possible. There are several ways to reduce stains. Going to the dentist twice a year can help enormously; you can go more often for a cosmetic cleaning to prevent stains from settling in. Regular brushing and flossing are essential, as is minimizing your use of stain-inducing products such as tobacco, coffee and tea.
For more severe stains, teeth may be bleached. This is best done professionally, although your dentist may be able to recommend an appropriate in-home product. Toothpaste designed to remove stains is often abrasive and can harm tooth enamel; again, confer with your dentist. Some individuals experience tooth or gum sensitivity during office or home whitening treatments and may have to reduce the number of whitening sessions.