Teeth whitening is a cosmetic dental procedure that involves the use of products or techniques to lighten the color of teeth and remove stains and discoloration. Teeth can become discolored or stained over time due to a variety of factors, including aging, smoking, drinking coffee or tea, and certain medications.

There are several methods for teeth whitening, including in-office treatments performed by a dentist, at-home treatments using over-the-counter products such as whitening strips or gels, and professional at-home treatments prescribed by a dentist.

In-office teeth whitening treatments typically involve the use of a powerful bleaching agent, such as hydrogen peroxide or carbamide peroxide, that is applied to the teeth and activated with a special light or laser. This can result in significant whitening in a single session, but it can also be more expensive and may cause sensitivity and discomfort.