Teeth whitening or teeth bleaching is a very common dental treatment procedure, and it  has been part of the dental profession for more then 100 years. We haven't seen such an interest in teeth bleaching as today. This "need" ...

Dental stain is divided in two categories: Extrinsic and intrinsic stain. Extrinsic means the exterior, or outer layer of the tooth, whereas intrinsic means interior or the inner part of the tooth. The interior stain or intrinsic stain is often ...