At Private Medical Center, we'll make sure you'll be able to enjoy a beautiful smile! Before starting your teeth whitening, the dentist examines the condition of your teeth and gums to ensure full safety of the procedure. First, old and leaky fillings must be removed, as well as hygienic procedures to remove scale and sludge. Depending on your lifestyle and degree of tooth discoloration, the dentist selects the adequate preparation and course of treatment. The effect of whitening is to lighten the teeth color range by several tones. Prosthetic restorations and teeth fillings remain unchanged. If necessary, after the color stabilizes (which usually lasts from 10 to 14 days), the dentist can replace them by selecting the appropriate lighter color.