Typically, veneers entail at least three appointments: diagnosis and treatment planning, preparation, and bonding.
During the tooth preparation visit, usually lasting one to two hours, the teeth are lightly buffed to allow for the small added thickness of the veneer. Usually, about a half a millimeter of the tooth is removed, which may require a local anesthetic. During the same visit, a mold is taken of the teeth, and sent to the laboratory for the fabrication of the veneers.