Dental Zirconia Quiz

What is Yttria?

• A rare-earth ceramic

• A hard metal

• A type of steel

• A dental material

What is the purpose of adding yttria to zirconia?

• To improve wear properties

• To increase biocompatibility

• To stabilize the crystal structure

• To enhance toughness

Which method is used for the fabrication of zirconia?

• 3D printing

• Injection molding

• CAD-CAM

• Hand sculpting

What is the major mechanism of bonding that sandblasting zirconia with porcelain veneering or resin bonding?

• Chemical bonding

• Electrostatic attraction

• Micro-nano-mechanical interlocking

• Hydrogen bonding

What are the two ways of veneering zirconia?

• Both B and C

• A. Superior toughness

• B. Traditional layering technique

• C. Hot pressing method

• Both A and B

What is the meaning of CAD-CAM?

• Computer-aided design and computer-aided manufacturing

• Computer-aided dental and computer-aided monomer

• Computer-aided degassing and computer-aided manufacturing

• Computer-aided design and computer-aided machine

Which one is the desirable properties of dental use?

• Superior toughness

• High ductility

• Low strength

• Poor wear resistance

• All of the above

Most popular and effective cements for all types of ceramic restorations are the....

• ALL CERAMIC RESTORATION

• RESIN-BASED COMPOSITES

• PORCELAIN FUSED TO METAL RESTORATION

• ALL OF THE ABOVE

Since zirconia is an _________, AIRBORNE PRACTICE ABRASION (APA) systems like sandblasting is done to produce micromechanical retention.

• Acid-resistant ceramic

• Hard metal

• Non-acid-resistant ceramic

• Rare-earth ceramic

What is Y-TZP stands for?

• Yttria-stabilized Tetragonal zirconia polycrystal

• Yttria-stabilized Trigonal zirconia polysulfide

• Yttria-stabilized Tetragonal zirconia polysulfide

• Yttria-stabilized Trigonal zirconia polycrystal