Porcelain is a material that is highly resistant to staining and discoloration, which is one of the reasons why it’s used in the fabrication of dental veneers. Thus, once porcelain dental veneers are bonded to your teeth, they cannot be whitened like natural teeth. If you have dental veneers and you wish to whiten your teeth, the only option is to have the veneers replaced with lighter or whiter ones. Teeth whitening is commonly recommended prior to receiving dental veneers to ensure a more uniform looking final result.