Tooth whitening lightens teeth and helps to remove stains and discolouration. Whitening is among the most popular cosmetic dental procedures because it can greatly improve how your teeth look.
Whitening is not a one-time procedure. It will need to be repeated from time to time if you want to maintain the brighter colour.
Tooth-whitening works best for people with yellow teeth and is less effective for people with brown teeth. If your teeth are Gray or purple, tooth bleaching probably won’t work at all.
To be sure tooth-whitening is worth your time and money, talk to your dentist before you use an over-the-counter tooth whitening kit.