Question 1

In general,the purposes of provisional coverage are to:

Accepted Answer

A) maintain and/or restore tooth function. 
B) provide comfort for the patient while the permanent restoration is being fabricated. 
C) protect the margins of the prepared tooth. 
D) all of the above. 
A) maintain and/or restore tooth function. 
B) provide comfort for the patient while the permanent restoration is being fabricated. 
C) protect the margins of the prepared tooth. 
D) all of the above. D

Question 2

An important step in placing a porcelain veneer is:

Accepted Answer

A) making a provisional to be worn while the veneer is being made. 
B) matching the tooth color of the veneer to the adjacent teeth. 
C) making sure the veneer is thick enough block out underlying color. 
D) making the cement used a shade darker than the veneer. 
A) making a provisional to be worn while the veneer is being made. 
B) matching the tooth color of the veneer to the adjacent teeth. 
C) making sure the veneer is thick enough block out underlying color. 
D) making the cement used a shade darker than the veneer. B

Question 3

A post can be used as a retention aid for a crown,provided that the tooth:

Accepted Answer

A) is vital. 
B) has been treated endodontically. 
C) has not been treated endodontically. 
D) is non-restorable. 
A) is vital. 
B) has been treated endodontically. 
C) has not been treated endodontically. 
D) is non-restorable. B

Question 4

A gingival retraction cord is placed _____ the crown preparation is completed; it is removed _____ the final impression is taken.

Accepted Answer

A) after; after 
B) after; before 
C) before; after 
D) before; before 
A) after; after 
B) after; before 
C) before; after 
D) before; before

Question 5

When one or more teeth are missing from the same arch,a permanent _____ is recommended.

Accepted Answer

A) partial denture 
B) fixed bridge 
C) porcelain-fused-to-metal crown 
D) denture 
A) partial denture 
B) fixed bridge 
C) porcelain-fused-to-metal crown 
D) denture

Question 6

The tapered finish line of the margin at the cervical area of a tooth preparation is a(n):

Accepted Answer

A) articulator. 
B) chamfer. 
C) core. 
D) shoulder. 
A) articulator. 
B) chamfer. 
C) core. 
D) shoulder.

Question 7

The component of the bridge that provides support for the replacement teeth is a(n):

Accepted Answer

A) abutment. 
B) pontic. 
C) unit. 
D) core. 
A) abutment. 
B) pontic. 
C) unit. 
D) core.

Question 8

Which of the following procedures takes place during the second appointment for the placement of a cast restoration?

Accepted Answer

A) Shade selection 
B) Preliminary impressions 
C) Final impressions 
D) Try-in 
A) Shade selection 
B) Preliminary impressions 
C) Final impressions 
D) Try-in

Question 9

Which of the following should be included on the laboratory prescription?

Accepted Answer

A) Dentist's name, license number, address, and signature 
B) Type of prosthesis requested 
C) Date when the case is expected back 
D) All of the above 
A) Dentist's name, license number, address, and signature 
B) Type of prosthesis requested 
C) Date when the case is expected back 
D) All of the above

Question 10

Each component of a fixed bridge is referred to as a:

Accepted Answer

A) tooth. 
B) crown. 
C) unit. 
D) core. 
A) tooth. 
B) crown. 
C) unit. 
D) core.

Question 11

_____ can be used in selected situations,such as a replacement for a congenitally missing lateral incisor,as an alternative to a traditional bridge.

Accepted Answer

A) A resin-bonded bridge 
B) A Maryland bridge 
C) Both a and b 
D) A crown 
A) A resin-bonded bridge 
B) A Maryland bridge 
C) Both a and b 
D) A crown

Question 12

The opening into which the post is cemented is a:

Accepted Answer

A) keyway slot. 
B) chamfer. 
C) shoulder. 
D) post channel. 
A) keyway slot. 
B) chamfer. 
C) shoulder. 
D) post channel.

Question 13

Which statement(s) is true of packing retraction cord?

Accepted Answer

A) It is important to place the retraction cord into the sulcus without damaging the surrounding gingival tissues. 
B) The placement and removal of gingival retraction cord are expanded functions and may be performed by a dental assistant trained in expanded functions. 
C) Generally, the operator removes the cord while the assistant prepares the impression material. 
D) All of these statements are true. 
A) It is important to place the retraction cord into the sulcus without damaging the surrounding gingival tissues. 
B) The placement and removal of gingival retraction cord are expanded functions and may be performed by a dental assistant trained in expanded functions. 
C) Generally, the operator removes the cord while the assistant prepares the impression material. 
D) All of these statements are true.

Question 14

Which of the following is an example of a fixed prosthesis?

Accepted Answer

A) Composite resin 
B) Silver dental amalgam 
C) Three-unit bridge 
D) Pin-retained silver dental amalgam 
A) Composite resin 
B) Silver dental amalgam 
C) Three-unit bridge 
D) Pin-retained silver dental amalgam

Question 15

When the patient has a fixed prosthesis,such as a three-unit bridge,the area under the pontic is maintained by:

Accepted Answer

A) brushing with a toothbrush. 
B) threading dental floss under the pontic with a bridge threader. 
C) irrigation with a cannula. 
D) swishing with a mouthrinse. 
A) brushing with a toothbrush. 
B) threading dental floss under the pontic with a bridge threader. 
C) irrigation with a cannula. 
D) swishing with a mouthrinse.

Question 16

A full metal crown that has the outer layers covered with a thin layer of porcelain is a(n):

Accepted Answer

A) porcelain jacket crown. 
B) porcelain-fused-to-metal crown. 
C) onlay. 
D) three-quarter crown. 
A) porcelain jacket crown. 
B) porcelain-fused-to-metal crown. 
C) onlay. 
D) three-quarter crown.

Question 17

Which of the following statements is true concerning porcelain veneers?

Accepted Answer

A) They are usually recommended to improve chewing efficiency of posterior teeth. 
B) The color of the finished veneer can be affected by the shade of the underlying tooth structure and by the color of the luting agent. 
C) Porcelain veneers do not involve preparation of tooth structure. 
D) Provisional coverage is required following impressions for porcelain veneers. 
A) They are usually recommended to improve chewing efficiency of posterior teeth. 
B) The color of the finished veneer can be affected by the shade of the underlying tooth structure and by the color of the luting agent. 
C) Porcelain veneers do not involve preparation of tooth structure. 
D) Provisional coverage is required following impressions for porcelain veneers.

Question 18

The purpose of a core buildup is to:

Accepted Answer

A) support the cast crown. 
B) provide a larger area of surface retention for cementation. 
C) both a and b. 
D) neither a nor b; core buildups are not used with cast crowns. 
A) support the cast crown. 
B) provide a larger area of surface retention for cementation. 
C) both a and b. 
D) neither a nor b; core buildups are not used with cast crowns.

Question 19

The most common method to obtain gingival retraction is:

Accepted Answer

A) chemical retraction. 
B) mechanical retraction. 
C) surgical retraction. 
D) completed with an infuser. 
A) chemical retraction. 
B) mechanical retraction. 
C) surgical retraction. 
D) completed with an infuser.

Question 20

Which statement is not true concerning retention pins?

Accepted Answer

A) Retention pins may be necessary to add strength to the core buildup. 
B) The location of the pulp determines the exact location of the placement of the pins. 
C) Retention pins can only be used if the tooth has been treated endodontically. 
D) The type of crown being fabricated is a determining factor for the placement of the pins. 
A) Retention pins may be necessary to add strength to the core buildup. 
B) The location of the pulp determines the exact location of the placement of the pins. 
C) Retention pins can only be used if the tooth has been treated endodontically. 
D) The type of crown being fabricated is a determining factor for the placement of the pins.

Exam 50: Fixed Prosthodontics

In general,the purposes of provisional coverage are to:

An important step in placing a porcelain veneer is:

A post can be used as a retention aid for a crown,provided that the tooth:

A gingival retraction cord is placed _____ the crown preparation is completed; it is removed _____ the final impression is taken.

When one or more teeth are missing from the same arch,a permanent _____ is recommended.

The tapered finish line of the margin at the cervical area of a tooth preparation is a(n):

The component of the bridge that provides support for the replacement teeth is a(n):

Which of the following procedures takes place during the second appointment for the placement of a cast restoration?

Which of the following should be included on the laboratory prescription?

Each component of a fixed bridge is referred to as a:

_____ can be used in selected situations,such as a replacement for a congenitally missing lateral incisor,as an alternative to a traditional bridge.

The opening into which the post is cemented is a:

Which statement(s) is true of packing retraction cord?

Which of the following is an example of a fixed prosthesis?

When the patient has a fixed prosthesis,such as a three-unit bridge,the area under the pontic is maintained by:

A full metal crown that has the outer layers covered with a thin layer of porcelain is a(n):

Which of the following statements is true concerning porcelain veneers?

The purpose of a core buildup is to:

The most common method to obtain gingival retraction is:

Which statement is not true concerning retention pins?

History of Dentistry

The Professional Dental Assistant

The Dental Healthcare Team

Dental Ethics

Dentistry and the Law

General Anatomy

General Physiology

Oral Embryology and Histology

Head and Neck Anatomy

Landmarks of the Face and Oral Cavity

Overview of the Dentitions

Tooth Morphology

Dental Caries

Periodontal Disease

Preventive Dentistry

Nutrition

Oral Pathology

Microbiology

Disease Transmission and Infection Prevention

Principles and Techniques of Disinfection

Principles and Techniques of Instrument Processing and Sterilization

Regulatory and Advisory Agencies

Chemical and Waste Management

Dental Unit Waterlines

Ergonomics

The Patient Record

Vital Signs

Oral Diagnosis and Treatment Planning

The Special Needs and Medically Compromised Patient

Principles of Pharmacology

Assisting in a Medical Emergency

The Dental Office

Delivering Dental Care

Dental Hand Instruments

Dental Handpieces and Accessories

Moisture Control

Anesthesia and Pain Control

Foundations of Radiography, Radiographic Equipment, and Radiation Safety

Digital Imaging, Dental Film, and Processing Radiographs

Legal Issues, Quality Assurance, and Infection Prevention

Intraoral Imaging

Extraoral Imaging

Restorative and Esthetic Dental Materials

Dental Liners, Bases, and Bonding Systems

Dental Cements

Impression Materials

Laboratory Materials and Procedures

General Dentistry

Matrix Systems for Restorative Dentistry

Provisional Coverage

Removable Prosthodontics

Dental Implants

Endodontics

Periodontics

Oral and Maxillofacial Surgery

Pediatric Dentistry

Coronal Polishing

Dental Sealants

Orthodontics

A gingival retraction cord is placed _ the crown preparation is completed; it is removed _ the final impression is taken.