For many people, a teeth whitens their self-image and increases confidence. This is why teeth whitening has become one of the most popular dental procedures. It is important to understand the risks and benefits of teeth whitening so you can make an informed decision on whether this treatment is right for you.

A whitening treatment uses a mild bleaching agent to remove stains from the outer surface of your teeth. Stains can be caused by food and drinks, such as coffee, red wine or cola; and smoking. There are two types of stains: Intrinsic staining, which occurs on the inside of your tooth and is not usually lightened by a bleach; and Extrinsic staining, which appears on the outside of your tooth and can be lightened with a whitening product.

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Depending on the type of staining, different bleaching products are used. Some contain detergents and abrasives to scrub away the chromogens on the surface of your tooth; others have bleaches that interact with the chromogens to lighten their color. A whitening product with a high concentration of hydrogen peroxide is usually used for in-office whitening, as it can lighten the tooth by several shades in a short period of time.

There are some non-dental professionals who offer whitening services, but it is important to only use a reputable professional. Home whitening kits may contain abrasive cleansers, which can damage your enamel and make your teeth sensitive. There are also a variety of “home remedies” such as swishing oil, such as coconut or sesame, which does not have a significant whitening effect and may cause gum irritation.