The whitening agents take off the debris form the ruptures by actually oxidizes them. Mostly hydrogen peroxide and carbamide peroxide are used to whiten the teeth. Whitening agents oxidizes the organic matter stuck in the ruptures and clean the ruptures. These ruptures then left as such or filled with the suitable material if required. Teeth whitening are in demand and preferred process in the cosmetic amenities. There are many products and procedures available to brighten the teeth. The process, cost and time are so varied that it leaves a person in the ocean of information. If you choose to go for the process you have to choose the product/procedure suitable for you.