Tooth Whitening

Many people are not pleased with the appearance of their own teeth and one of the easiest methods of improving this appearance is by tooth whitening.
Enamel, the first layer of tooth surface, is actually semi-translucent, or clear. The layer underneath the enamel, known as dentin, is typically yellow, but may be gray, brown or black. This hue is what is seen penetrating through the enamel. In order to whiten the dentin, a peroxide solution is placed on the enamel. This process opens the pores of the enamel, allowing the solution to reach the layer of dentin. The solution will then begin to lighten the dentin, resulting in the appearance of whiter teeth.
As far as specific techniques and systems go, there are three basic categories. The first and least effective are over-the-counter products such as whitening strips. The second used to be the only professional option and consists of trays that are made by dentists and worn at home by the patient. The newest and most effective are chairside methods in which the entire procedure is preformed in the office over the course of approximately two hours. In this system a special light is used in conjunction with the whitening agent in multiple applications.
The good news for the patient is that many options are available nowadays and many are proven safe and effective.