Veneers typically require 2-3 appointments. The first is a consultation to determine the desired look, and plan the shape of the veneers to achieve it.
During the second visit, the tooth surfaces will be prepared, by removing a very thin layer of enamel, and taking impressions of the teeth. Using these impressions, veneers are fabricated to fit onto the surfaces, either on-site, or at a lab facility.
On the third visit, the dentist will apply a cleaning solution to prepare the tooth surfaces for bonding, and the permanent veneers will be cemented.