Bleaching has become very popular thanks to the necessities of the time and the increase in aesthetic expectations. Bleaching is applied when local colorings appear depending on the development of teeth and when a person is not satisfied with his or her tooth color. This process is applied with various chemicals and amplified light and laser support within clinical environment. In some cases, the process is supported with whitening agents and plaques to be used within home environment. It can seriously harm if not conducted under dentist control.