Teeth whitening is a cosmetic dental procedure designed to lighten the color of teeth and remove stains caused by food, drinks, smoking, and aging. Over time, enamel can become discolored due to substances like coffee, tea, red wine, and tobacco. Professional teeth whitening treatments help restore the natural brightness of teeth and enhance the overall appearance of the smile.

During the procedure, a dentist applies a professional-grade whitening gel that contains safe bleaching agents. These agents penetrate the enamel and break down stains that have built up over time. A protective barrier is usually placed over the gums to prevent irritation, and in some cases a special light may be used to activate the whitening gel and speed up the process.