Question 1

Organic molecules in waxes are composed primarily of long chains containing carbon, hydrogen, and oxygen. The long chains allow waxes to be flexible at room temperature or sticky as solids or liquids.

Accepted Answer

A)   Statement 1 is correct; statement 2 is correct.
B)   Statement 1 is correct; statement 2 is incorrect.
C)   Statement 1 is incorrect; statement 2 is correct.
D)   Statement 1 is incorrect; statement 2 is incorrect.E) A) and D)
F) None of the above

Question 2

Which of the following is an advantage of casting wax?

Accepted Answer

A)   Flows easily
B)   Slight tackiness
C)   No residual stress
D)   Can be light curedE) None of the above
F) C) and D)

Question 3

What is the time frame for investing a wax pattern once it has been completed?

Accepted Answer

A)   At least a week
B)   24 hours
C)   Between 5 and 30 minutes
D)   Less than 5 minutesE) C) and D)
F) B) and D)

Question 4

Which of the following is not a mineral wax?

Accepted Answer

A)   Paraffin
B)   Ceresin
C)   Carnauba
D)   Both A and B are correct.E) All of the above
F) B) and C)

Question 5

The flow of corrective impression wax at mouth temperature is ____%.

Accepted Answer

A)   10
B)   25
C)   50
D)   75
E)   100F) B) and D)
G) A) and B)

Question 6

Which of the following type of wax is used to fabricate wax patterns for crowns and other indirect restorations?

Accepted Answer

A)   Casting wax
B)   Boxing wax
C)   Utility wax
D)   Inlay waxE) B) and C)
F) C) and D)

Question 7

What is the purpose of sticky wax?

Accepted Answer

A)   Temporarily hold metal together
B)   Correct an original impression
C)   Gain accurate articulation
D)   Maintain a specific patternE) C) and D)
F) A) and C)

Question 8

Waxes have a specific melting point. Waxes are single-component materials.

Accepted Answer

A)   Statement 1 is correct; statement 2 is correct.
B)   Statement 1 is correct; statement 2 is incorrect.
C)   Statement 1 is incorrect; statement 2 is correct.
D)   Statement 1 is incorrect; statement 2 is incorrect.E) B) and D)
F) A) and D)

Question 9

Under which conditions would a type III baseplate be recommended?

Accepted Answer

A)   Cold climate
B)   Tropical climate
C)   When contouring dentures
D)   To maintain a specific patternE) All of the above
F) A) and B)

Question 10

Utility and periphery waxes are about _____ in diameter.

Accepted Answer

A)   0.1 mm
B)   0.5 mm
C)   0.1 cm
D)   0.5 cmE) None of the above
F) C) and D)

Question 11

List the five important properties of waxes, and explain why each is essential to the success of the final outcome.

Accepted Answer

Melting range, excess residue, flow, the...

Question 12

Which type of wax is used as a wax veneer over an original impression to register the detail of soft tissues in a functional state?

Accepted Answer

A)   Utility wax
B)   Boxing wax
C)   Baseplate wax
D)   Corrective impressionE) A) and C)
F) C) and D)

Question 13

Which type of wax would include boxing, utility, and sticky waxes?

Accepted Answer

A)   Processing
B)   Baseplate
C)   Pattern
D)   InlayE) C) and D)
F) B) and C)

Question 14

At _____ temperatures, waxes hardly flow at all, but as the temperature approaches the melting _____ of the wax, the flow increases.

Accepted Answer

A)   low; point
B)   low; range
C)   high; point
D)   high; rangeE) None of the above
F) All of the above

Question 15

Which type of wax is used to hold the position of denture teeth before the denture is processed in acrylic?

Accepted Answer

A)   Sticky wax
B)   Utility wax
C)   Baseplate wax
D)   Corrective impression waxE) A) and D)
F) None of the above

Question 16

The lost-wax technique uses ________ wax to produce crowns, inlays, and veneers.

Accepted Answer

A)   inlay
B)   casting
C)   baseplate
D)   only A and BE) All of the above
F) A) and C)

Question 17

How is baseplate wax dispensed?

Accepted Answer

A)   Ready-made shapes
B)   Round sticks
C)   Sheets
D)   StripsE) None of the above
F) A) and D)

Question 18

__________ waxes are used primarily in taking and pouring impressions.

Accepted Answer

A)   Sticky
B)   Utility
C)   Boxing
D)   Corrective impression
E)   Both B and C are correct.F) C) and D)
G) A) and D)

Question 19

How should wax be manipulated in order to reduce the amount of stress on the material?

Accepted Answer

A)   Wax should be burnished at temperatures well below its melting range.
B)   Wax should be carved at temperatures well below its melting range.
C)   Wax patterns should be carved with warm instruments.
D)   Melted wax should be added in large increments.E) A) and B)
F) A) and C)

Question 20

Organic molecules in some waxes contain long-chain elements. Which of the following is not part of that group?

Accepted Answer

A)   Hydrogen
B)   Carbon
C)   Oxygen
D)   SilicaE) All of the above
F) A) and B)

Exam 10: Waxes

The lost-wax technique uses ________ wax to produce crowns, inlays, and veneers.

Correct AnswerverifiedShow Answer

What is the purpose of sticky wax?

Correct AnswerverifiedShow Answer

Waxes have a specific melting point. Waxes are single-component materials.

Correct AnswerverifiedShow Answer

Which type of wax is used as a wax veneer over an original impression to register the detail of soft tissues in a functional state?

Correct AnswerverifiedShow Answer

Organic molecules in some waxes contain long-chain elements. Which of the following is not part of that group?

Correct AnswerverifiedShow Answer

How should wax be manipulated in order to reduce the amount of stress on the material?

Correct AnswerverifiedShow Answer

Utility and periphery waxes are about _____ in diameter.

Correct AnswerverifiedShow Answer

List the five important properties of waxes, and explain why each is essential to the success of the final outcome.

Correct AnswerverifiedMelting range, excess residue, flow, the...View AnswerShow Answer

What is the time frame for investing a wax pattern once it has been completed?

Correct AnswerverifiedShow Answer

Under which conditions would a type III baseplate be recommended?

Correct AnswerverifiedShow Answer

How is baseplate wax dispensed?

Correct AnswerverifiedShow Answer

__________ waxes are used primarily in taking and pouring impressions.

Correct AnswerverifiedShow Answer

At _____ temperatures, waxes hardly flow at all, but as the temperature approaches the melting _____ of the wax, the flow increases.

Correct AnswerverifiedShow Answer

Which type of wax is used to hold the position of denture teeth before the denture is processed in acrylic?

Correct AnswerverifiedShow Answer

Organic molecules in waxes are composed primarily of long chains containing carbon, hydrogen, and oxygen. The long chains allow waxes to be flexible at room temperature or sticky as solids or liquids.

Correct AnswerverifiedShow Answer

The flow of corrective impression wax at mouth temperature is ____%.

Correct AnswerverifiedShow Answer

Which of the following type of wax is used to fabricate wax patterns for crowns and other indirect restorations?

Correct AnswerverifiedShow Answer

Which of the following is not a mineral wax?

Correct AnswerverifiedShow Answer

Which of the following is an advantage of casting wax?

Correct AnswerverifiedShow Answer

Which type of wax would include boxing, utility, and sticky waxes?

Correct AnswerverifiedShow Answer

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Melting range, excess residue, flow, the...
View Answer

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At _ temperatures, waxes hardly flow at all, but as the temperature approaches the melting _ of the wax, the flow increases.

Correct Answer
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