Question 1

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. 
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. E

Question 2

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

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. 
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. D

Question 4

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

Accepted Answer

A)  inorganic; high 
B)  inorganic; low 
C)  organic; high 
D)  organic; low 
A)  inorganic; high 
B)  inorganic; low 
C)  organic; high 
D)  organic; low

Question 5

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

Accepted Answer

A)  inlay 
B)  casting 
C)  baseplate 
D)  corrective 
A)  inlay 
B)  casting 
C)  baseplate 
D)  corrective

Question 6

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. 
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.

Question 7

Which material listed has the highest coefficient of thermal expansion?

Accepted Answer

A)  Waxes 
B)  Ceramics 
C)  Gold alloys 
D)  Silver amalgams 
A)  Waxes 
B)  Ceramics 
C)  Gold alloys 
D)  Silver amalgams

Question 8

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 out 
A)  Available as chemically cured composite resins 
B)  Higher strength than dental waxes 
C)  Higher flow than dental waxes 
D)  Residue when they burn out

Question 9

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. 
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.

Question 10

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 wax 
A)  Inlay wax 
B)  Sticky wax 
C)  Boxing wax 
D)  Corrective impression wax

Question 11

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. 
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.

Question 12

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

Accepted Answer

A)  no 
B)  reversible 
C)  irreversible 
D)  insignificant 
A)  no 
B)  reversible 
C)  irreversible 
D)  insignificant

Question 13

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 dentures 
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 dentures

Question 14

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; greater 
A)  higher; lower 
B)  higher; greater 
C)  lower; lower 
D)  lower; greater

Question 15

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

Question 16

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

Accepted Answer

Processing waxes are used in various aux

Question 17

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

Question 18

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 B 
A)  Beading wax 
B)  Sticky wax 
C)  Inlay wax 
D)  A, B, and C 
E)  A and B

Question 19

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 C 
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 C

Question 20

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. 
A)  Inlays 
B)  Veneers 
C)  Crowns 
D)  A, B, and C 
E)  A and C are both correct.

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

Which of the following waxes are categorized as pattern waxes?

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

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

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

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

Which material listed has the highest coefficient of thermal expansion?

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

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

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

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.

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

When is casting wax used?

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

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

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

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

Which of the following waxes are categorized as processing waxes?

Which statement is true about sticky wax?

What are pattern or casting waxes used to fabricate?

Introduction to Restorative Dental Materials

Properties of Materials

Preventive Dental Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Cements

Impression Materials

Model and Die Materials

Casting Alloys, Wrought Alloys, and Solders

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Ceramics

Dental Implants

Filters

Exam 10: Waxes

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

Which of the following waxes are categorized as pattern waxes?

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

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

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

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

Which material listed has the highest coefficient of thermal expansion?

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

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

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

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.

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

When is casting wax used?

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

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

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

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

Which of the following waxes are categorized as processing waxes?

Which statement is true about sticky wax?

What are pattern or casting waxes used to fabricate?

Introduction to Restorative Dental Materials

Properties of Materials

Preventive Dental Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Cements

Impression Materials

Model and Die Materials

Casting Alloys, Wrought Alloys, and Solders

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Ceramics

Dental Implants

Filters

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

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