What is bleaching? Lightening or bleaching is the most simple and gentle method for your teeth to show a healthy and dazzling smile. The Carbamide Peroxide, which we are applying, is not harmful for your teeth. Only the discolouring of your teeth, which has taken place over the years, will be washed away from the surface of the teeth. Your personal wishes of how the colour of your teeth should be, can be achieved – if necessary – by several treatments.