A blight white smile has always been a symbol of health, beauty and vitality for hundreds of years. Discoloration of the front teeth causes a significant disturbance in the aesthetics and may also decrease the patient’s self-esteem. Public demand for the aesthetic dentistry which includes the tooth whitening has increased in recent years. Dental bleaching offers a simplified, conservative and low cost approach to change the color of discolored teeth. The pigments oxidation is responsible for tooth bleaching and can be carried out with two different products; carbamideperoxide and hydrogen peroxide. The present case reports reflect a remarkable change of tooth color by in-office bleaching.