Teeth whitening, also known as dental bleaching, is one of the most common treatments used in modern dentistry. It is defined by the FDA as follows: whitening treatments are a simple restoration of the natural tooth color while bleaching whitens teeth beyond their natural color.
There are various methods of treatment available. These include bleaching strips, brushing with specialized toothpaste, UV bleaching, bleaching gels and bleaching pens. Aside from being highly popular, teeth whitening is also a very successful business enterprise. In 2010 alone, more than 100 million Americans spent an estimated 15 billion dollars on teeth whitening methods and treatments.
The American Dental Association is exact in their approved whitening methods. The approved chemical for whitening procedures is carbamide peroxide. To compare it to hydrogen peroxide, carbamide peroxide has roughly one third the strength. This means a whitening solution composed of 15 percent carbamide peroxide is equal in strength to a 5 percent solution of hydrogen peroxide. Peroxide cleans and whitens your teeth because it is an oxidizing agent. It penetrates your teeth’s enamel and removes the stains which are deposited in the underlying dentin layer. Light may also be used in professional treatments in a process called power bleaching. The addition of light accelerates the chemical reaction and the overall treatment process.




