Dental Ceramic

Posted by RachelHJM83 on May 13th, 2017

Zirconia dental ceramics have became a study hotspot in the oral repair material. Dental ceramics combined with computer aided design and computer aided manufacture (CAD/CAM), batter plastic coated technology can make crown and bridge restoration.

With the development of dental material, because the whole porcelain restoration technology has good biocompatibility and superior aesthetic effect, and become the ideal way of repair. In the whole porcelain material systems, the strength and toughness of zirconia (ZrO2) ceramic is obviously superior to other materials. Zirconium dental ceramics are the focus of the attention and study in oral materials, it occupies an important position in the dental ceramics.

Zirconia ceramic materials can solve the shortage of conventional whole porcelain material, such as the strength and toughness, and it belongs to the biological inert ceramic materials, Zirconia dental ceramics materials have been widely used in biomedical field. In oral repair material application, zirconium dioxide dental ceramics can be widely used in single crown, three units bridge and even repair multiple units bridge of the posterior teeth.

Zirconia teeth ceramics has the characteristic of the stress-induced phase transformation toughening effect, the strength and toughness of zirconia teeth are superior to the traditional feldspar porcelain and alumina ceramic, dental zirconium oxide material has become a hot topic in recent years. According to the famous American dental laboratory Glidewell Laboratiories released information, zirconia teeth accounts for 72.9% in the technology of the all-ceramic restoration in 2010. All zirconia tooth caps monthly output reached 40,000pcs in 2012.

Yttrium stabilized zirconia teeth ceramic materials can occur martensite phase transformation under the action of stress and have good mechanical properties at room temperature. In addition, Y-TZP has good wear resistance, corrosion resistance, biological safety and low thermal conductivity, and became the ideal dental restoration ceramic materials. Compared with other dental ceramic materials, Yttrium stabilized zirconium ceramics has the highest mechanical properties. Y TZP ceramics is the core of dental material in dental all restoration ceramic materials.

Dental zirconium ceramic materials commonly include four phase zirconium ceramics (3 mol % yttria - stabilized tetragonal zirconia polycrystals and 3Y TZP), zirconia toughening ceramics, partially stabilized zirconium ceramics, nanometer zirconium oxide and alumina oxide composite ceramic.

Also See: Dental Ceramics, Ceramic Materials, Zirconium Ceramics, Zirconia Teeth, Zirconia, Materials, Dental

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