Porcelain veneers can be used to give someone a brighter and whiter smile. Since porcelain veneers are stain resistant, they can be used to permanently whiten the teeth and the smile. To maintain the veneers, you take care of them just like your natural teeth by brushing and flossing. But you no longer have to worry about using whitening toothpaste, trays, or systems with porcelain veneers.