Tooth whitening or tooth bleaching is the process of lightening the color of human teeth. Whitening is often desirable when teeth become yellowed over time for a number of reasons, and can be achieved by changing the intrinsic or extrinsic color of the tooth enamel.
Teeth whitening is a cosmetic dental procedure aimed at lightening the color of the teeth and removing stains and discoloration. It is usually done by applying a bleaching agent, either in a dental office or using at-home whitening kits. The bleaching agent breaks down stains and lifts them from the tooth enamel, resulting in a brighter and whiter smile. Teeth whitening can enhance the appearance of teeth affected by factors such as aging, smoking, or consuming certain foods and beverages.