Our teeth can discolor through the years as our enamel wears down. The wearing down of enamel allows dentin, a yellow color substance that makes the core of our teeth, to show through. This is what gives our teeth a yellowish tint. Teeth whitening helps restore teeth to a shiny white color through the use of bleach.
Teeth whitening method
Teeth whitening, often called bleaching, involves the use of take home whitening kits. These whitening kits are purchased from your doctor for use at home. The strength of the gel used in these kits is lower than that used for in-office bleaching, and thus the gel can be applied for longer periods of time. Custom-made trays are worn a couple hours a day or overnight for a few days or weeks depending on the product.
Its best to consult your dentist to understand which whitening option is best for you.