Deck 10: Crown and Bridge Restorative Instruments

Question 1

What type of blocks does a CAD/CA milling machine use to construct a permanent crown?

A)Plastic
B)Acrylic
C)Ceramic
D)Gold alloy

Answer 1

Ceramic

Question 2

What is the function of a gingival retraction cord instrument?

A)To place a gingival retraction cord prior to taking a final impression
B)To remove a gingival retraction cord after taking a final impression
C)To place a gingival retraction cord prior to taking a preliminary impression
D)To remove a gingival retraction cord after taking a preliminary impression

Answer 2

To place a gingival retraction cord prior to taking a final impression

Question 3

A shade guide for crown and bridge procedure is found on which tray setup?

A)Crown and bridge preparation tray setup
B)Crown and bridge cementation tray setup

Answer 3

Crown and bridge preparation tray setup

Question 4

Which of the following instruments would NOT be found on a crown and bridge preparation tray setup?

A)Crown-removing forceps
B)Spoon excavator
C)Woodson
D)Curette

Question 5

Which of the following would be used to outline a crown with an intraoral wand connected to a computer?

A)Facebow
B)Intraoral camera
C)CAD/CAM machine
D)CAD/CA milling machine

Question 6

Which of the following materials is used to seat a permanent crown?

A)Wooden bite stick
B)Wooden wedge
C)Bite block

Question 7

Which of the following instruments would be found on a tray setup for seating and cementing a crown?

A)Flexible cement mixing spatula
B)Woodson instrument
C)Trial crown remover
D)Wooden bite stick
E)All of the above

Question 8

Crown and bridge scissors are used for all of the following purposes EXCEPT

A)trimming the gingival edge of a permanent crown.
B)cutting gingival retraction cord.
C)trimming a matrix band.
D)cutting dental dam.

Question 9

What is the main function of the trial crown remover?

A)Remove temporary crowns.
B)Place permanent crowns on the prepared tooth.
C)Remove permanent crowns during the try-in phase.
D)A and C are correct.
E)All of the above

Question 10

All of the following are uses for contouring pliers EXCEPT

A)to contour the marginal edge of a temporary crown.
B)to remove a provisional crown.
C)to crimp and contour the marginal edge of a stainless steel crown.
D)to crimp the marginal edge of a provisional restoration.

Question 11

The main purpose of crown and bridge scissors is to crimp and contour the marginal edge of a temporary crown.

Question 12

Gingival retraction cord instrument is mainly used on a crown and bridge tray setup.

Question 13

Which instrument is designed to remove a permanent crown prior to cementation?

A)Provisional crown-removing forceps
B)Trial crown remover
C)Contouring pliers
D)Only A and B are correct.

Question 14

It takes two appointments to prepare, fabricate, and deliver a CAD/CAM permanent crown.

Question 15

Which instrument is used to place gingival retraction cord in the sulcus area of prepared teeth before impressions are taken?

A)Contouring pliers
B)Crown-removing forceps
C)Crown and bridge scissors
D)Retraction cord instrument

Question 16

Which instrument establishes centric relationship of the maxillary teeth to the mandibular teeth?

A)Cad/CAM machine
B)Wooden bite stick
C)Facebow
D)Articular

Question 17

Which instrument is found on a tray setup to cement a permanent crown?

A)Gingival retraction cord instrument
B)Shade guide
C)Woodson
D)All of the above