To prepare a tooth/teeth for a veneer, your dentist will remove about .5 mm of enamel from the tooth surface, the amount that is equal to the thickness of the veneer to be installed. Before removing the tooth's surface, the area will be numbed with anesthetic. The impression will be taken and the veneers will be placed 1 to 2 weeks later. For very unsightly teeth, temporary veneers can be applied for an additional cost.