There are various methods to whiten teeth.
No individual technique is suitable to everyone.
The best technique depends on many factors: like the degree of discoloration, age, and condition of teeth.
To start whitening the teeth, they must be in good health with no decay or gum disease. The need for any cosmetic work on front teeth using veneers, or crowns should be done after finishing the whitening, as the porcelain will not get whiter.
Generally speaking there are two types of bleaching:
1- Office bleaching: where the whitening material is applied to the teeth at the dental chair according to the manufacturer’s instructions, some material recommend the use of light, some don’t. In some cases an abrasive might be used prior to bleaching.
2- Home bleaching: a model is made of the teeth. Then a thin tray made of malleable material is fabricated. The whitening agent is applied into the tray to be placed over the teeth. Some systems require the tray to be worn for half an hour, other systems require it to be worn for 8 hours and can be done over night.
Trays fabricated using modelsBleaching injected into trayTray with bleach placed over teeth
The major side effects of the process:
– Teeth sensitivity after the whitening. This is only transient and can be treated.
– The gums might get irritated and sore. This is also transient provided the tray has been properly fabricated, and not much excess material oozes out while bleaching
– Ulcerations in the mouth.
– White patches on the gums. These usually don’t last more than a couple of days.