Tooth bleaching: An update

The popularity of tooth whitening has increased with the advent of patient- applied, peroxide-based whitening agents, as well as increased media influence. Peroxides are considered effective and safe when used under professional super- vision. Whitening methods include those prescribed by a dental professional for the patient's at-home use, those applied by the dental professional in the office, a combination of both, or methods available over the counter (OTC). This article reviews the effect of contemporary whitening agents and illustrates the clinical application of three methods prescribed by dental professionals.