Teeth whitening is a cosmetic dental procedure designed to enhance the appearance of teeth by eliminating stains and discoloration, using methods such as in-office treatments, at-home kits, or over-the-counter products. It is suitable for those facing discoloration due to aging, lifestyle habits, or medication, and offers benefits like improved aesthetics and increased confidence, though it may cause temporary sensitivity. Various whitening methods include in-office, at-home, and laser treatments, each with different timelines and results.