Himachal Dental

CAD Ceramics

Posted in Cosmetic Dentistry by UK Dental Tourism on September 8, 2009
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The term all ceramics covers a variety of materials ,which differ quite considerably in the way they are processsed and in the type of properties they exhibit .Special type of materials are available for wide variety of requirements .As a result there are rapid developments in this feild.

Materials that can be processed using CAD-CAM equipment include silicate and oxide ceramics.The strength and stability are considered to be the most important properties.Generally ,highly resistant ceramics should be preffered because of their durability. Apart frombeing easier to process,ceramics of low strength demonstrate optical advantages,such as naturally looking tranlucency and fluorencence,which are of importance in places where highly aesthetic restorations are required.

Ivoclar vivadent has two lines of products IPS Empress and IPS e.max which offers ceramic materials for every clinical indication.

IPS Express CAD is a leucite glass ceramic .The ceramics uncomplicated handling and highly aesthetic appearance make up for its lack of strength.The blocks can be machined in a straight forward procedure using CEREC .The indications include inlays ,partial crowns and all ceramic anterior and posterior crowns and veneers.

IPS e.max CAD is alithium disilicate andcatagorized as silicate ceramic.It is a medium strength ceramic and has to undergo crstallization firing to obtain its final strength.It is mainly used to fabricate full crowns.

IPS e.max ZirCAD is based on yttrium-stabalized zirconium dioxide and is classified as oxide ceramic.It is one of the strongest dental ceramics with bending strength of around 900MPa . Most CAD-CAM machines are not capable of milling it to the final state.Therefore it is machined in what is known as “green state” and the sintered to obtain final strength.the materials high strength allows it to be used for almost every indication ,withncrowns and above all bridges being the most common indication.


One Response to 'CAD Ceramics'

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  1. PRIYA said,

    I am just writing to you to show my appreciation. My new teeth have given me a new lease of life. Your service from start to finish has been of the highest quality and made me feel very comfortable. Once again, Thankyou. I can’t stop smiling”

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