Tooth whitening lightens the shade of your teeth by removing stains and any discoloration caused by aging, medications, diet and lifestyle factors such as drinking coffee, tea, and wine, or smoking. Tooth-whitening is not a permanent solution for discolored teeth.
To whiten your teeth, your dentist will take an impression of your teeth and make custom trays that fit your teeth. They will give you a supply of bleaching gel usually containing hydrogen or carbamide peroxide which needs to be applied to the tray. You will then place in your mouth and wear the tray for a certain amount of time. Follow your dentist’s instructions and only use the prescribed amount of whitening gel. The excess gel can contact your gums and cause irritation.
You may feel some sensitivity during the whitening process. This is normal and usually subsides after a couple of days. Talk to your dentist if your teeth feel sensitive long after treatment.