Components Of Dental Ceramic

Kaolin 3 5 quartz silica 12 25.

Components of dental ceramic.

Feldspathic ceramics are still common in dental restorations today. Ceramic used in dental application differs in composition from conventional ceramic to achieve optimum aesthetic components such as translucency. Lithium disilicate crystals are created by adding li 2 o lithium oxide to the alumino silicate glass. Types and uses of ceramics in dentistry today.

The most common ceramics used in dentistry are alloys of 3 main metallic oxides sio2 al2o3 k2o. Feldspathic ceramics are the oldest of the dental ceramics and are very esthetic but relatively weak. Ceramics or porcelains are chemically intimate mixtures of metallic and non metallic elements that allow ionic k2o and or covalent bonding sio2 to occur. It also acts as a flux lowering the melting temperature of the material.

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. As example the composition of dental feldspathic porcelain is as follows. Leucite is created in dental porcelain by increasing the k 2 o potassium oxide content of the alumino silicate glass.