Generally speaking, cosmetic dentistry includes any type of elective procedure that’s used to enhance the way your smile looks. Whitening, for example, brightens the colour of your teeth but it doesn’t treat gum disease or tooth decay. Dental veneers can make your smile look straighter in just a couple of appointments, but they’re not used for addressing excessive decay and wear. These are strictly aesthetic treatments – like whitening and veneers – or restorative procedures that are performed for a dual purpose, such as white fillings and crowns.