Currently, denture all-ceramic materials with more clinical applications include zirconia-based all-ceramic, alumina-based all-ceramic, leucite all-ceramic, and lithium oxide-based all-ceramic.
Zirconia-based all-ceramic: It has extremely high hardness and cannot be processed by conventional casting, sintering, etc. It must be processed by computer-aided design and cutting system (ie CAD/CAM series). It is the most commonly used all-ceramic restoration for dentures.
Alumina-based all-ceramic: The production process includes three categories: Vita In-ceram all-ceramic system, Wolceram porcelain deposition all-ceramic system and Procera all-ceramic system. The materials used are all alumina-based all-ceramics, but the production methods are different. Alumina-based all-ceramic combines the strength of a metal-porcelain bridge with the aesthetics of an Empress.
Lithium oxide-based all-ceramic: high strength, but low translucency, so it is only used to make all-ceramic inner crowns clinically, and veneer porcelain is baked on the outside, which can not only ensure the strength of the porcelain crown, but also achieve a good Translucent aesthetic effect.
Leucite all-porcelain: The translucent effect is good, but the strength is limited. At present, this kind of material is mostly used in clinical practice to make dental veneers or inlays.
