Dental Veneers
Veneers are new facings for teeth which disguise a discoloured (rather than a damaged) tooth. To fit a veneer, the front of the tooth is drilled away a little. An impression is taken, and a thin layer of porcelain is fitted over the front of the tooth (similar to how a false fingernail is applied).
Veneers are generally only available privately unless you can show a clinical need for them.