Promoting Tooth Whitening
Tooth whitening is one way to enhance your smile.
What Causes Discoloured or Yellow Teeth?
Stains can form on the surface of the tooth enamel where the coloured molecules found in things such as red wine, coffee, tea, tobacco, certain fruits and sodas can attach to the tooth surface. Over time, these coloured molecules can go into the enamel where they can no longer be removed by brushing alone.

There are many other ways teeth can become discoloured.

  • Tobacco use. Dark pigments in cigarettes and chewing tobacco can stain teeth
  • Poor dental hygiene. Infrequent brushing and flossing to remove plaque can cause tooth discolouration
  • Disease. Several diseases that affect enamel (the hard surface of the teeth) and dentin (the underlying material under enamel) formation can lead to tooth discolouration. In addition, treatments for certain conditions can affect tooth colour. For example, head and neck radiation and chemotherapy can cause yellowing
  • Age. As you get older, the outer layer of enamel on your teeth can wear away, revealing the natural yellow colour of dentin
  • Genetics. Some people naturally have a greater susceptibility to yellowing of teeth
How Do I Prevent Tooth Discolouration?
Whitening toothpastes, such as Crest Pro-Health, help remove surface stains and protect against new stain for a whiter and brighter smile. To remove stains below the enamel surface, use a whitening system like Crest Whitestrips. Lifestyle changes can also help prevent tooth discolouration. For instance, drink less coffee and soda and, if you smoke, consider cutting back or quitting. It is important to use proper dental hygiene, as well.

Crest Pro-Health
Crest Pro-Health Toothpaste contains whitening ingredients that work together to help prevent tartar and the buildup of new stains from forming. It's been formulated to help reveal the natural whiteness of the teeth.

The Polyfluorite™ System found only in Crest Pro-Health Toothpaste combines stannous fluoride and sodium hexametaphosphate, to give you a cleaner, whiter smile. Stannous fluoride is an anti-bacterial agent clinically proven to protect against gingivitis, plaque and tooth sensitivity while still providing the trusted cavity protection you expect from Crest. Sodium hexametaphosphate works with the silica to remove surface stains to help whiten teeth and forms a protective barrier on the teeth to help prevent the buildup of new stains on the tooth's surface. Together they deliver a unique, comprehensive protection for your teeth, providing excellent whitening benefits.
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