Components Of Dental Ceramic

Feldspathic ceramics porcelains are glassy ceramics that form from the combination of feldspar silica and alumina.

Components of dental ceramic.

Kaolin 3 5 quartz silica 12 25. Ceramics or porcelains are chemically intimate mixtures of metallic and non metallic elements that allow ionic k2o and or covalent bonding sio2 to occur. Feldspathic ceramics are still common in dental restorations today. Dental ceramics are usually referred to as nonmetallic inorganic structures primarily containing compounds of oxygen with one or more metallic or semi metallic elements like aluminum calcium lithium magnesium phosphorus potassium silicon sodium zirconium titanium 1 10.

Lithium disilicate crystals are created by adding li 2 o lithium oxide to the alumino silicate glass. Leucite is created in dental porcelain by increasing the k 2 o potassium oxide content of the alumino silicate glass. Ceramic used in dental application differs in composition from conventional ceramic to achieve optimum aesthetic components such as translucency. It also acts as a flux lowering the melting temperature of the material.

Composition of dental ceramics and dental porcelain. Feldspathic ceramics are the oldest of the dental ceramics and are very esthetic but relatively weak. The term dental ceramics comprises a wide variety of materials that reaches from filled glasses to nearly dense sintered ceramics from products that are shaped from powders and melts to components milled from blanks before or after sintering.