Deck 33: Fixed Prosthodontics and Gingival Retraction

Question 1

Brushing and flossing are not daily requirements when fixed restorations are placed.

Answer 1

False

Question 2

A retraction cord that is packed vertically to expose the prepared margin is sufficient for the bulk of impression material to flow around the margin.

Answer 2

True

Question 3

A full crown is often called a(n) ____________.

A) full-cast crown
B) three-quarter crown
C) inlay
D) veneer

Answer 3

full-cast crown

Question 4

The electrosurgery unit cauterizes the tissues as it removes them.

Question 5

A preparation that involves the mesial, distal, and lingual but leaves the facial intact is for a(n) ____________.

A) full-cast crown
B) three-quarter crown
C) inlay
D) veneer

Question 6

Crowns that have veneers are known as ceramometal crowns.

Question 7

With advances in cosmetic/esthetic dentistry, younger and older generations are making it a priority to do whatever it takes to have the "perfect smile."

Question 8

The laboratory technician works closely with the dentist to give the patient a quality restoration.

Question 9

Use of a CAD/CAM system allows the dentist to take digital impressions and design the restoration right in the office without sending anything out to a lab.

Question 10

Which type of restoration covers the area between the cusps in the middle of the tooth?

A) Onlay
B) Three-quarter crown
C) Inlay
D) Veneer

Question 11

The chlorhexidine gluconate rinses are safe for dental implant patients.

Question 12

Indirect restorations are placed directly in the mouth after the tooth has been prepared.

Question 13

The retraction cord is left in place during the impression.

Question 14

Temporary coverage is not necessary for veneers.

Question 15

When selecting the shade for a porcelain crown or a veneer, it is best to select the proper shade after the tooth has been prepared.

Question 16

The chlorhexidine gluconate rinses aid in the fibroblast attachment to the implant surface.

Question 17

Which type of restoration covers the area to include the cusp ridges and the middle of the tooth?

A) Onlay
B) Three-quarter crown
C) Inlay
D) Veneer

Question 18

In prosthodontics, the restoration is termed the ____________.

A) prosthesis
B) pontic
C) abutment
D) implant

Question 19

How are fixed prosthodontic restorations held in place?

A) Mechanical retention
B) Permanent cementation
C) Temporary cementation
D) None of the above

Question 20

Tooth-colored cast restorations are made of porcelain or resins.

Question 21

In general, which type of veneer wears at a great rate?

A) Porcelain
B) Resin
C) Both types wear the same.
D) Neither type will wear.

Question 22

A PFM crown has as its advantage ____________.

A) strength
B) esthetics
C) both a and b
D) neither a nor b

Question 23

Restorations made of all gold alloy are used mainly for the ____________.

A) anterior region of the mouth
B) posterior region of the mouth
C) either a or b
D) neither a nor b

Question 24

Which restoration requires only that the lingual of the abutment teeth be prepared?

A) Cantilever bridge
B) Veneer
C) PFM bridge
D) Maryland bridge

Question 25

A bridge that includes two abutments and four pontics has how many units?

A) Two
B) Four
C) Six
D) Eight

Question 26

Which metals are added to gold to create an alloy for crowns, inlays, and onlays?

A) Nickel
B) Platinum
C) Tin
D) Both b and c

Question 27

The teeth on either side of the missing tooth are the ____________.

A) clasps
B) abutment
C) pontic
D) none of the above

Question 28

The margins of the preparation are finished in a __________ preparation.

A) chamfer
B) shoulder
C) either a or b
D) neither a nor b

Question 29

Place the steps of a veneer restoration preparation appointment in order.
1) Select the shade
2) Prep the teeth
3) Impression
4) Place retraction cord

A) 1, 2, 3, 4
B) 1, 4, 2, 3
C) 3, 4, 2, 1
D) 1, 2, 4, 3

Question 30

The most natural looking veneer is the ____________.

A) direct resin
B) indirect resin
C) porcelain
D) all look the same

Question 31

What is used to prepare the tooth for a crown?

A) Low-speed handpiece with diamonds and burs
B) High-speed handpiece with diamonds and burs
C) Either a or b
D) The teeth are not prepped for a crown

Question 32

Place the steps of a PFM crown in order.
1) Shade is selected
2) Tooth is prepped
3) Polyether or polysiloxane impression is taken
4) Bite registration
5) Temporary coverage is cemented

A) 1, 2, 3, 4, 5
B) 2, 1, 3, 4, 5
C) 1, 2, 4, 3, 5
D) 2, 3, 1, 4, 5

Question 33

Veneers are restorations that cover which tooth surface?

A) Facial
B) Lingual
C) Mesial and distal
D) All of the above

Question 34

How long is the retraction cord left in place?

A) 2 minutes
B) 5 minutes
C) 10 minutes
D) It does not matter.

Question 35

What is used to clean and decontaminate the inside surface of the veneer?

A) Acid etchant
B) Alcohol
C) Water
D) None of the above

Question 36

Which type of veneer is made in the dental office directly on the patient's tooth and requires only one appointment?

A) Direct resin
B) Indirect resin
C) Porcelain
D) None of the above

Question 37

The part of a bridge that replaces the missing tooth is the ____________.

A) clasp
B) abutment
C) pontic
D) none of the above

Question 38

Veneers are used to ____________.

A) hide badly stained teeth
B) reshape the anatomy of the tooth
C) either a or b
D) neither a nor b

Question 39

Alginate impressions are taken during the crown preparation appointment to ____________.

A) fabricate the temporary form
B) create a model of the opposing arch
C) send to the lab to create the restoration
D) either b or c

Question 40

Gold alloy crowns that have porcelain facials are known as __________ crowns.

A) PFM
B) full-cast
C) three-quarter
D) porcelain

Question 41

_________ months after the dental implants have been in place, a fixed prosthesis stage begins.

A) Twelve
B) Eight
C) Six
D) Four

Question 42

What is included on a laboratory prescription?

A) Patient's name
B) Types of materials and shade used for restoration
C) The dentist's name, phone number, and license number
D) All of the above

Question 43

If an endodontically treated tooth has very little crown structure left, an option is to place a ____________.

A) core buildup
B) post-retained core buildup
C) either a or b
D) neither a nor b

Question 44

The use of the CAD/CAM restorative systems benefit the patient in which of the following?

A) No unpleasant impressions
B) No need for temporaries
C) Less reduction of a healthy tooth
D) All of the above

Question 45

The retraction cord could be impregnated with ____________.

A) sodium
B) aluminum chloride
C) fluoride
D) none of the above

Question 46

The retraction cord is packed in the sulcus with a(n) ____________.

A) explorer
B) plastic instrument
C) curette
D) cotton pliers

Question 47

If a vital tooth has very little crown structure left, an option is to place a ____________.

A) core buildup
B) post-retained core buildup
C) either a or b
D) neither a nor b

Question 48

The retraction cord is left in place _______ minutes.

A) 1
B) 5
C) 10
D) It does not matter how long

Question 49

The bite registration is taken with ____________.

A) alginate
B) polysiloxane
C) wax
D) Either a or b

Question 50

Adjustments to the restorations are done ____________.

A) before cementation
B) after cementation
C) in the dental lab
D) before the trial fit

Question 51

The post-retained core is made of which of the following?

A) Titanium
B) Titanium alloy
C) Gold plated
D) All of the above

Question 52

The temporary crown is removed with the ____________.

A) crown remover
B) scaler
C) spoon excavator
D) all of the above

Question 53

Antimicrobial rinses are ____________.

A) safe for the patient's use
B) used once or twice a day
C) an aid in the fibroblast attachment to the implant surface
D) all of the above

Question 54

Any adjustment to the crown is done with a ____________.

A) high-speed handpiece and diamonds
B) low-speed handpiece and diamonds
C) low-speed handpiece and finishing burs/discs/stones
D) high-speed handpiece and finishing burs/discs/stones

Question 55

Temporary crowns are held in place with ____________.

A) temporary cement
B) permanent cement
C) mechanical retention
D) none of the above

Question 56

Items available for use in the care of dental implants include ____________.

A) threading systems
B) interproximal brushes
C) water irrigators
D) all of the above

Question 57

When restoring a nonvital tooth, which of the following retention methods would be selected?

A) Retention pins
B) Pin and core
C) Post-retained core
D) Retention pins in amalgam

Question 58

A core buildup is made of all of the following EXCEPT ____________.

A) titanium
B) amalgam
C) composite
D) silver alloy/glass ionomer

Question 59

Posts used in core buildups are made of ____________.

A) amalgam
B) titanium
C) nickel
D) composite

Question 60

The objective(s) for gingival retraction is/are to ____________.

A) control hemorrhage
B) retract the tissue
C) both a and b
D) assist with prepping the tooth