Question 1

For a highly accurate reproduction, the material of choice would be a

Accepted Answer

A)  rigid material 
B)  reversible hydrocolloid 
C)  plastic 
D)  elastomeric 
A)  rigid material 
B)  reversible hydrocolloid 
C)  plastic 
D)  elastomeric D

Question 2

24-carat gold contains

Accepted Answer

A)  gold only 
B)  gold and one other metal 
C)  gold and platinum 
D)  gold and silver 
A)  gold only 
B)  gold and one other metal 
C)  gold and platinum 
D)  gold and silver A

Question 3

Type III gypsum is used as a cast for a dental prosthesis.

Accepted Answer

A) True 
 B)False  False

Question 4

Silicophosphate cement is used

Accepted Answer

A)  as a temporary restoration 
B)  for cementing stainless steel crowns 
C)  for cementing orthodontic appliances 
D)  for cementing bridges 
A)  as a temporary restoration 
B)  for cementing stainless steel crowns 
C)  for cementing orthodontic appliances 
D)  for cementing bridges

Question 5

A digital impression can be made without the use of trays or impression materials.

Accepted Answer

A) True 
 B)False

Question 6

Thermoplastic impression materials

Accepted Answer

A)  are used when no flexibility is needed 
B)  are used only in the absence of teeth 
C)  soften with hot temperatures and harden with cold temperatures 
D)  all of the above 
A)  are used when no flexibility is needed 
B)  are used only in the absence of teeth 
C)  soften with hot temperatures and harden with cold temperatures 
D)  all of the above

Question 7

Which type of gypsum is used mostly for general study models?

Accepted Answer

A)  Type I 
B)  Type II 
C)  Type III 
D)  Type IV 
A)  Type I 
B)  Type II 
C)  Type III 
D)  Type IV

Question 8

A combination of metals is called a/an

Accepted Answer

A)  alloy 
B)  composite 
C)  polymer 
D)  resin 
A)  alloy 
B)  composite 
C)  polymer 
D)  resin

Question 9

Which type of wax is used for bite registrations?

Accepted Answer

A)  inlay wax 
B)  baseplate wax 
C)  utility wax 
D)  casting wax 
A)  inlay wax 
B)  baseplate wax 
C)  utility wax 
D)  casting wax

Question 10

Which type of gypsum is best used for orthodontic models?

Accepted Answer

A)  impression 
B)  model 
C)  dental stone 
D)  improved stone 
A)  impression 
B)  model 
C)  dental stone 
D)  improved stone

Question 11

When gold is annealed, it is

Accepted Answer

A)  hardened 
B)  softened 
C)  whitened 
D)  none of the above 
A)  hardened 
B)  softened 
C)  whitened 
D)  none of the above

Question 12

Which type of wax would be put on the edge of an impression tray?

Accepted Answer

A)  sticky wax 
B)  boxing wax 
C)  utility wax 
D)  disclosing wax 
A)  sticky wax 
B)  boxing wax 
C)  utility wax 
D)  disclosing wax

Question 13

A slurry is a

Accepted Answer

A)  gold mixture 
B)  base metal 
C)  thin, watery mix 
D)  polymer 
A)  gold mixture 
B)  base metal 
C)  thin, watery mix 
D)  polymer

Question 14

Tensile strength is the maximum amount of stress a material can withstand without deformation.

Accepted Answer

A) True 
 B)False

Question 15

Emery, garnet, pumice, and quartz are all

Accepted Answer

A)  polishing agents 
B)  abrasive agents 
C)  used on enamel 
D)  used on resins 
A)  polishing agents 
B)  abrasive agents 
C)  used on enamel 
D)  used on resins

Question 16

The type of gold alloy used for partial denture clasps is

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 17

Chalk, cuttle, rouge, and tripoli

Accepted Answer

A)  are all polishing agents 
B)  are all abrasive agents 
C)  are all used on gold or gold alloys 
D)  have nothing in common 
A)  are all polishing agents 
B)  are all abrasive agents 
C)  are all used on gold or gold alloys 
D)  have nothing in common

Question 18

A composite contains

Accepted Answer

A)  two or more metals 
B)  glass particles 
C)  agar 
D)  gypsum 
A)  two or more metals 
B)  glass particles 
C)  agar 
D)  gypsum

Question 19

A quinary alloy contains how many metals?

Accepted Answer

A)  two 
B)  three 
C)  four 
D)  five 
A)  two 
B)  three 
C)  four 
D)  five

Question 20

Galvanization is the chemical release of heat.

Accepted Answer

A) True 
 B)False

For a highly accurate reproduction, the material of choice would be a

24-carat gold contains

Type III gypsum is used as a cast for a dental prosthesis.

Silicophosphate cement is used

A digital impression can be made without the use of trays or impression materials.

Thermoplastic impression materials

Which type of gypsum is used mostly for general study models?

A combination of metals is called a/an

Which type of wax is used for bite registrations?

Which type of gypsum is best used for orthodontic models?

When gold is annealed, it is

Which type of wax would be put on the edge of an impression tray?

A slurry is a

Tensile strength is the maximum amount of stress a material can withstand without deformation.

Emery, garnet, pumice, and quartz are all

The type of gold alloy used for partial denture clasps is

Chalk, cuttle, rouge, and tripoli

A composite contains

A quinary alloy contains how many metals?

Galvanization is the chemical release of heat.

Introduction to Dental Terminology

Anatomy and Oral Structures

Tooth Origin and Formation

Practice and Facility Setups

Infection Control

Emergency Care

Examination and Prevention

Pain Managementpharmacology

Radiology

Tooth Restorations

Cosmetic Dentistry

Prosthodontics

Endodontics

Oral and Maxillofacial Surgery

Orthodontics

Periodontics

Pediatric Dentistry

Dental Laboratory Procedures

Business Management Procedures

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Exam 18: Dental Laboratory Materials

For a highly accurate reproduction, the material of choice would be a

24-carat gold contains

Type III gypsum is used as a cast for a dental prosthesis.

Silicophosphate cement is used

A digital impression can be made without the use of trays or impression materials.

Thermoplastic impression materials

Which type of gypsum is used mostly for general study models?

A combination of metals is called a/an

Which type of wax is used for bite registrations?

Which type of gypsum is best used for orthodontic models?

When gold is annealed, it is

Which type of wax would be put on the edge of an impression tray?

A slurry is a

Tensile strength is the maximum amount of stress a material can withstand without deformation.

Emery, garnet, pumice, and quartz are all

The type of gold alloy used for partial denture clasps is

Chalk, cuttle, rouge, and tripoli

A composite contains

A quinary alloy contains how many metals?

Galvanization is the chemical release of heat.

Introduction to Dental Terminology

Anatomy and Oral Structures

Tooth Origin and Formation

Practice and Facility Setups

Infection Control

Emergency Care

Examination and Prevention

Pain Managementpharmacology

Radiology

Tooth Restorations

Cosmetic Dentistry

Prosthodontics

Endodontics

Oral and Maxillofacial Surgery

Orthodontics

Periodontics

Pediatric Dentistry

Dental Laboratory Procedures

Business Management Procedures

Filters