The appearance of a tooth can be changed by using either full crowns or veneers. The main difference between a crown preparation and a veneer preparation is the amount of tooth removed to perform the job.
Veneers invove less removal than a crown.
Composite veneer work often involves no tooth removal at all. This example shows the use of inlay dental work on a patient who had poor cosmetic molars. The dental inlays dramatically improved the look and feel of her mouth.