Teeth whitening is a cosmetic treatment done to improve the appearance of teeth. Teeth are whitened to remove the effects of coffee, cigarettes, and other substances that permanently stain or discolor teeth.
Aging also causes teeth to lose their bright color.Whitening may not be recommended for people with gum disease, receding gums, or sensitive teeth. The dentist may advise against certain treatments if the enamel is worn. There is no enamel on anexposed root, so the root cannot be whitened.
In addition, cavities must be filled before Whitening treatment begins. Otherwise, the patient could experience additional sensitivity when Whitening material comes into contact with decay or the tooth interior..