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Dental Ceramics

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Spring-retained maxillary and mandibular dentures of U.S. President George Washington, – made from hippopotamus ivory by dentist

a)

John Westwood

b)

John Greenwood

c)

John miller

d)

I dont know

2.

Thermal properties of ceramics are similar to those of

a)

metal

b)

steel

c)

enamel and dentin

d)

wood

3.

Basically porcelain is a type of glass - three dimensional network of silica like

a)

silica trihedral

b)

silica tetrahedral

c)

silica monohedral

d)

silica dihedral

4.

Process to fuse the particles of porcelain powder producing hard mass

a)

Firing

b)

glazing

c)

milling

d)

polishing

5.

Process to obtain a smooth surface that simulates a natural tooth surface

a)

firing

b)

glazing

c)

sintering

d)

milling

6.

Slip-Cast All-Ceramic Materials - Introduced in dentistry in the

a)

1970s

b)

1980s

c)

1990s

d)

1960s

7.

which is not a cohesive failure of METAL-CERAMIC BONDING

a)

Porcelain-porcelain

b)

metal-metal

c)

oxide-oxide

d)

metal-porcelain

8.

which porcelain mask the color of the cement used for adhesion of the restoration

a)

Opaque porcelain

b)

body porcelain

c)

dentin porcelain

d)

Enamel porcelain

9.

Alumina-Based Ceramic developed by

a)

McLean in 1965

b)

John Greenwood in 1965

c)

Morgan in 1945

d)

Miller in 1980

10.

The plastic mass of powder and water is applied to the metal coping is called

a)

condensation

b)

copy milling

c)

pressing

d)

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