Tooth whitening in a dental practice lightens and brightens teeth, while removing stains and discolouration. Tooth whitening is one of the most popular cosmetic dental procedures, because it can dramatically improve the appearance of your teeth.
Contrary to popular beliefs, tooth whitening is not a one-time procedure. It needs to be repeated from time to time in order for you to maintain a whiter, brighter smile.
The colour of the tooth enamel (the outer layer of the tooth) is created by the reflection and scattering of light off the tooth, combined with the colour of the dentin beneath the enamel. Your genes and lifestyle choices affect the thickness and smoothness of the enamel. Thinner enamel allows the colour of the dentin to shine through, causing teeth to appear darker.
