Teeth whitening is a cosmetic dental procedure designed to lighten the natural colour of your teeth without removing any of the tooth surfaces. It can significantly enhance the brightness and appearance of your smile by removing stains and discolouration caused by various factors like coffee, red wine, and tobacco.
The process involves applying a whitening agent, usually containing hydrogen peroxide or carbamide peroxide, to the teeth. These chemicals break down, releasing oxygen molecules that penetrate the enamel and dentin to break up stains. The procedure can be performed at a dental office or at home with a kit prescribed by a dentist.
There are primarily two types of teeth whitening services:
Teeth whitening is suitable for most adults who desire a brighter smile and do not have severe dental issues, such as active gum diseases or deep cavities. It is ideal for individuals with stained teeth due to age, diet, or smoking who have healthy, unrestored teeth (no fillings or crowns).
While teeth whitening is generally safe when performed by a qualified professional, some people may experience temporary side effects such as tooth sensitivity or gum irritation. These symptoms are usually mild and resolve on their own within a few days of completing treatment.
The effects of teeth whitening can last from several months to up to three years, depending mainly on personal habits. To prolong the results, it is recommended to avoid substances that stain teeth, such as tobacco and dark-coloured foods and beverages. Regular dental cleaning and proper oral hygiene can also help maintain the results.