Alloys using gold, platinum, or metal alloys such as cobalt-chromium and nickel-chromium are used to make these coatings.
Metal veneers withstand chewing and various dental pressures well and can almost be considered the most durable type of veneers. Also, metal cladding is rarely broken or damaged. Perhaps the main problem with these coatings is their metallic and dark color.
Metal veneers can be a good choice for posterior teeth that are less visible. Also, because these veneers are made only of metal, they require less cutting of tooth tissue than ceramic metal veneers (PFM).
All-ceramic veneers, as their name implies, are made entirely of ceramic. All-ceramic veneers are aesthetically more transparent and natural than other types of veneers. However, these coatings have different types and the amount of vivid color in different types is different. But in general, they are a very good choice for veneering anterior (front) teeth. In terms of strength, this type of veneer has less strength than other types, so it should be selected taking into account therapeutic priorities.
Porcelain Fused to Metal (PFM) has been used in dentistry since about 1950. This type of veneer has long been considered the gold standard for tooth restoration.
These coatings have a metal frame or substructure covered with a layer of ceramic or porcelain. Unlike metal veneers, these veneers can be matched to the desired tooth color due to the ceramic layer. However, the porcelain part of these coatings is more fragile and may fade and fail.
Sometimes the metal frame below the ceramic surface is seen as a dark line right on the edge of the veneer, affecting the beauty of the veneer. To avoid this, the dentist cuts the edge of the veneer just below the gum line. But if a person’s gums are damaged, this black line will appear and will affect the beauty of the smile.
