Question 1

Wax carving instruments should be at what temperature when in use?

Accepted Answer

A)   7° C
B)   17° C
C)   27° C
D)   37° C
E)   47° CF) A) and E)
G) A) and D)

Question 2

Compare and contrast processing waxes with pattern waxes. Give examples of each.

Accepted Answer

Processing waxes are used in various aux...

Question 3

Which of the following statements is true of pattern waxes and resins?

Accepted Answer

A)   They must have a melting range lower than the environment in which the pattern is made.
B)   Too high of a melting range may make development of residual stresses a problem.
C)   They must possess high flow at their working temperature.
D)   All pattern waxes and resins must burn out with a residue.E) All of the above
F) None of the above D

Question 4

Which of the following waxes are categorized as pattern waxes?

Accepted Answer

A)   Baseplate wax
B)   Utility wax
C)   Inlay wax
D)   A, B, and C
E)   A and CF) B) and D)
G) A) and B) E

Question 5

Dental waxes are usually ________ molecules that have _____ molecular weights.

Accepted Answer

A)   inorganic; high
B)   inorganic; low
C)   organic; high
D)   organic; lowE) A) and C)
F) All of the above

Question 6

Which statement is true about sticky wax?

Accepted Answer

A)   Soft and pliable at room temperature
B)   Hard and brittle at room temperature
C)   Used to assemble metallic or resin pieces temporarily in position
D)   Both A and C
E)   Both B and CF) B) and D)
G) None of the above

Question 7

Which of the following waxes are categorized as processing waxes?

Accepted Answer

A)   Beading wax
B)   Sticky wax
C)   Inlay wax
D)   A, B, and C
E)   A and BF) None of the above
G) A) and B)

Question 8

The release of stress at higher temperatures will cause _________ deformation.

Accepted Answer

A)   no
B)   reversible
C)   irreversible
D)   insignificantE) A) and D)
F) All of the above

Question 9

Which type of wax may be molded around an unpoured impression to help contain the stone when it is vibrated into the impression?

Accepted Answer

A)   Inlay wax
B)   Sticky wax
C)   Boxing wax
D)   Corrective impression waxE) All of the above
F) B) and D)

Question 10

Which material listed has the highest coefficient of thermal expansion?

Accepted Answer

A)   Waxes
B)   Ceramics
C)   Gold alloys
D)   Silver amalgamsE) None of the above
F) A) and C)

Question 11

Which of the following statements is correct about the property of flow for dental waxes?

Accepted Answer

A)   Flow is highly dependent on temperature and time.
B)   For pattern waxes, flow at room temperature is a highly desirable property.
C)   For processing waxes, flow at room temperature is a highly desirable property.
D)   A and B are true statements.
E)   A and C are true statements.F) A) and C)
G) A) and B)

Question 12

What are pattern or casting waxes used to fabricate?

Accepted Answer

A)   Inlays
B)   Veneers
C)   Crowns
D)   A, B, and C
E)   A and C are both correct.F) All of the above
G) A) and D)

Question 13

Which of the following waxes may be used for bite registration?

Accepted Answer

A)   Baseplate wax
B)   Bite-registration wax
C)   28-gauge casting wax
D)   A, B, and C
E)   A and CF) B) and D)
G) C) and D)

Question 14

What does resin have that is different than inlay wax when it comes to fabrication of crowns and bridges?

Accepted Answer

A)   Available as chemically cured composite resins
B)   Higher strength than dental waxes
C)   Higher flow than dental waxes
D)   Residue when they burn outE) B) and C)
F) All of the above

Question 15

Residual stress is stress remaining in a wax as a result of manipulation during heating, cooling, bending, carving, or other manipulation. Manipulation of wax puts molecules of the wax into positions that they like and can change because of their solid state.

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 B)
F) A) and C)

Question 16

The flow of wax increases as the temperature decreases. The release of stress in a wax pattern leads to distortion.

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) A) and C)

Question 17

When is casting wax used?

Accepted Answer

A)   Fabricate wax patterns for crowns, inlays, and bridges
B)   Build the contours of a denture
C)   Register the details of soft tissue in a functional state
D)   Form the wax pattern of the metallic framework for removable partial denturesE) B) and C)
F) None of the above

Question 18

Which statement(s)  is/are correct about waxes?

Accepted Answer

A)   Melt at a single temperature
B)   Are mixtures of different components
C)   Do not have a discrete melting point at one temperature
D)   A and B are correct.
E)   B and C are correct.F) B) and D)
G) C) and D) E

Question 19

The _______ the coefficient of thermal expansion for waxes, the _______ the expansion as the wax is heated.

Accepted Answer

A)   higher; lower
B)   higher; greater
C)   lower; lower
D)   lower; greaterE) A) and B)
F) All of the above

Question 20

Manufactured in ready-made shapes, _____ wax is used for partial denture frameworks.

Accepted Answer

A)   inlay
B)   casting
C)   baseplate
D)   correctiveE) A) and B)
F) B) and C)

Exam 10: Waxes

Wax carving instruments should be at what temperature when in use?

Correct AnswerverifiedShow Answer

Compare and contrast processing waxes with pattern waxes. Give examples of each.

Correct AnswerverifiedProcessing waxes are used in various aux...View AnswerShow Answer

Which of the following statements is true of pattern waxes and resins?

Correct AnswerverifiedD

Which of the following waxes are categorized as pattern waxes?

Correct AnswerverifiedE

Dental waxes are usually ________ molecules that have _____ molecular weights.

Correct AnswerverifiedShow Answer

Which statement is true about sticky wax?

Correct AnswerverifiedShow Answer

Which of the following waxes are categorized as processing waxes?

Correct AnswerverifiedShow Answer

The release of stress at higher temperatures will cause _________ deformation.

Correct AnswerverifiedShow Answer

Which type of wax may be molded around an unpoured impression to help contain the stone when it is vibrated into the impression?

Correct AnswerverifiedShow Answer

Which material listed has the highest coefficient of thermal expansion?

Correct AnswerverifiedShow Answer

Which of the following statements is correct about the property of flow for dental waxes?

Correct AnswerverifiedShow Answer

What are pattern or casting waxes used to fabricate?

Correct AnswerverifiedShow Answer

Which of the following waxes may be used for bite registration?

Correct AnswerverifiedShow Answer

What does resin have that is different than inlay wax when it comes to fabrication of crowns and bridges?

Correct AnswerverifiedShow Answer

Residual stress is stress remaining in a wax as a result of manipulation during heating, cooling, bending, carving, or other manipulation. Manipulation of wax puts molecules of the wax into positions that they like and can change because of their solid state.

Correct AnswerverifiedShow Answer

The flow of wax increases as the temperature decreases. The release of stress in a wax pattern leads to distortion.

Correct AnswerverifiedShow Answer

When is casting wax used?

Correct AnswerverifiedShow Answer

Which statement(s) is/are correct about waxes?

Correct AnswerverifiedE

The _______ the coefficient of thermal expansion for waxes, the _______ the expansion as the wax is heated.

Correct AnswerverifiedShow Answer

Manufactured in ready-made shapes, _____ wax is used for partial denture frameworks.

Correct AnswerverifiedShow Answer

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Processing waxes are used in various aux...
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E

Dental waxes are usually ____ molecules that have _ molecular weights.

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E

The _ the coefficient of thermal expansion for waxes, the _ the expansion as the wax is heated.

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