12-15-2010, 06:21 AM
Teeth whitening, teeth whitening is also known as general dental common procedure, but particularly in the field of cosmetic dentistry. Many people believe that white teeth, a smile attractive feature. The child's primary teeth usually white teeth behind. As a person's age is often a dark teeth tooth enamel because fewer changes in the structure of porous minerals. Teeth can also become bacterial pigments, foodstuffs and tobacco.