Teeth whitening is an effective cosmetic method that provides a beautiful smile by removing discoloration caused by factors such as tea, coffee and cigarettes consumed. It can be applied by dentists in clinics. Teeth whitening should be evaluated according to dental health and sensitivity and should be performed under the control of a dentist. In order to maintain the whiteness of the teeth after teeth whitening, it is important to avoid colored foods and drinks, to give up habits such as smoking and regular tooth brushing.