Final Pre (EXTRA) Test

Question 1

What classification of restoration involves the proximal surface of a maxillary incisor and includes the incisal angle?

Answer 1

IV

Question 2

Which of the following is the step in initial cavity preparation when the dentist decides on the design and initial depth of sound tooth structure?

Answer 2

Outline form

Question 3

Which direct restorative material may be selected for the permanent restoration of a Class I lesion?

Answer 3

Composite resin

Question 4

How many tooth surfaces does a Class I restoration involve?

Answer 4

One

Question 5

Which is an example of a direct restorative dental material for a Class II restoration?

Answer 5

Composite Resin

Question 6

What is the dental assistant responsible for during a restorative procedure?

Answer 6

Preparing and transferring dental materials

Question 7

Class III restorations involve the interproximal surfaces of which teeth?

Answer 7

Incisors and canines

Question 8

What is the material of choice for restoring Class III and Class IV preparations?

Answer 8

Composite resin

Question 9

Complete the statement: “When completing a permanent restoration, the dentist should have knowledge of

Answer 9

the size and the position of the pulp of the tooth.

Question 10

What is the final step in a cavity preparation?

Answer 10

Placing a desensitizing or lining agent

Question 11

What responsibility does the dental assistant provide during a permanent restorative procedure?

Answer 11

Provide moisture control by using the high-velocity suction.

Question 12

In which teeth are Class II restorations found?

Answer 12

Premolars and molars

Question 13

What is the material of choice for a universal matrix band?

Answer 13

Thin, Flexible stainless steel

Question 14

Which statement is correct concerning wedges?

Answer 14

Both a wedge is used to apply pressure to the apical and gingival walls of the preparation and the wedge presses the band against the tooth, causing a slight separation of the teeth.

Question 15

Which matrix system used for Class II posterior restorations is the most common?

Answer 15

Tofflemire retainer and universal band

Question 16

A matrix must be used to create a temporary wall for which of the following classifications of tooth restoration?

Answer 16

Classes II, III, and IV

Question 17

Where should the cervical margin of a matrix band lie?

Answer 17

1 mm below the gingival margin of the preparation

Question 18

The universal, or Tofflemire, retainer holds the matrix band snugly in position. It is most often positioned in which area?

Answer 18

On the buccal surface of the tooth being restored

Question 19

If a cusp is lost during preparation, which matrix band would provide the best support while restoring?

Answer 19

Extension band

Question 20

Which type of circumferential matrix system is used for the primary molars?

Answer 20

T-band

Question 21

Where is the wedge positioned when placing a posterior restoration?

Answer 21

Lingual

Question 22

What is one advantage of an AutoMatrix over a universal matrix?

Answer 22

No retainer to hold the band in

Question 23

Which statement is correct regarding posterior metal matrix bands?

Answer 23

The smaller circumference is placed toward the gingiva.

Question 24

Why is a matrix band contoured prior to placing the restorative material?

Answer 24

To ensure that the final restoration will have proper contact with the adjacent tooth

Question 25

Which component of a fixed bridge anchors to existing teeth?

Answer 25

Abutment

Question 26

What is the material of choice for an inlay or onlay restoration if esthetics is a concern?

Answer 26

Porcelain

Question 27

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

Answer 27

Porcelain veneer

Question 28

What is the term for each component of a fixed bridge?

Answer 28

Unit

Question 29

How is the area under the pontic of a bridge maintained?

Answer 29

Clean under the pontic using floss and a floss threader.

Question 30

Which component of a fixed bridge replaces a missing natural tooth?

Answer 30

Pontic

Question 31

What is the name for a full metal crown that is covered in a thin layer of porcelain?

Answer 31

Porcelain-fused-to-metal crown

Question 32

When one or more teeth are missing from the same arch, which permanent restoration is recommended?

Answer 32

Fixed bridge

Question 33

What occurs at the final appointment in the crown and bridge process?

Answer 33

Cementation of a final restoration

Question 34

Which cast restoration is designed to fit snugly within a tooth preparation, such as a Class II restoration, and covers only a portion of the occlusal and proximal surface?

Answer 34

Inlay

Question 35

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

Answer 35

after, Before

Question 36

Under which condition would a post-and-core be recommended before placing a crown?

Answer 36

The tooth has been treated endodontically.

Question 37

The two types of provisional coverage include _____ and _____.

Answer 37

custom; prefabricated

Question 38

Methyl methacrylate is an example of which of the following types of materials commonly used for custom provisional coverage?

Answer 38

Powder/liquid materials

Question 39

What is one disadvantage of using custom provisional coverage?

Answer 39

It can be the most time-consuming prosthesis to make.

Question 40

What is the final step after cementing the provisional crown?

Answer 40

Check the occlusion.

Question 41

Which of the following is appropriate patient home care instruction for someone with provisional coverage?

Answer 41

Pull floss through the contact, either to the facial or lingual side, once floss is placed below the contact.

Question 42

Which provisional preformed crowns are used on anterior teeth when appearance is important?

Answer 42

Polycarbonate

Question 43

How long does a provisional crown or bridge normally need to last?

Answer 43

2 weeks to 1 month

Question 44

How far below the margin of the preparation should the provisional crown sit?

Answer 44

It should be flush with the margin.

Question 45

Which cement is most commonly used with provisional crowns?

Answer 45

Zinc-oxide-eugenol (ZOE) temporary luting cement

Question 46

The occlusal surface of the provisional coverage should sit _____ the occlusal plane of the adjacent teeth.

Answer 46

even with

Question 47

Which procedure would require a patient to wear a provisional prosthesis for a longer period of time than is typical?

Answer 47

Implants or periodontal therapy

Question 48

What is the most common type of provisional coverage used for crown and bridge preparations?

Answer 48

Custom-made

Question 49

When would a stainless steel crown be used for provisional coverage?

Answer 49

Primary posterior teeth