A new system of vital and nonvital teeth bleaching is a cosmetic and conservative method of treating dentition discolored by ingested substances, trauma, or other causes. The system also allows individuals with normal range dentition to whiten their teeth to meet cosmetic demands. This article reviews the literature, examines the effects of conventional teeth bleaching techniques, presents a new method for bleaching vital and nonvital teeth, and discusses the impact of new methods on the science of teeth whitening.