Most of the time, yes, but not always. External stains can be removed at home or by office bleaching with the help of a dentist, after a mechanical dental stone cleaning by a dentist. Such stains can often be caused by stain releasing agents such as coffee, tea, cigarettes, red wine or sometimes sauces on the external surface of the tooth.
You do not have to be born with perfect teeth to have a bright smile. If your teeth are smooth but the colors are yellow or yellowish with time such as cigarettes, tea, coffee, tooth whitening is an ideal way to open the toothbrush.
Porcelain laminate, laminate veneer, lamina veneer, emax laminate, empress laminate and "leaf porcelains" in Turkish language describe the same process. Although we prefer to use "leaf porcelain" as the Turkish version, we still prefer to use it in this way because it is still referred to as "laminate vener" even in Turkish literature.