Tooth whitening can be a very effective way of lightening the natural color of your teeth without removing any of the tooth surface. It cannot make a complete color change, but it may lighten the existing shade.
There are a number of reasons why you might get your teeth whitened. Everyone is different; and just as our hair and skin color vary, so do our teeth. Very few people have brilliant-white teeth, and our teeth can also become more discolored as we get older.
Your teeth can also be stained on the surface by food and drinks such as tea, coffee, red wine and blackcurrant. Smoking can also stain teeth.
‘Calculus' or tartar can also affect the color of your teeth. Some people may have staining under the surface, which can be caused by certain antibiotics or by tiny cracks in the teeth which take up stains any treatment.
The effects of whitening are thought to last up to three years. However, this will vary from person to person. The effect is less likely to last as long if you smoke, or eat or drink products that can stain your teeth. Ask your dental team for their opinion before you start the treatment.