Deck 6: Burs and Rotary Attachments for Handpieces

Question 1

Identify the number of the bur that has tapered sides with horizontal cutting edges.

A)157
B)168
C)330
D)699
E)701

Answer 1

699

Question 2

Which of the following numbers designates a straight fissure-plain cut bur?

A)6
B)56
C)330
D)557
E)701

Answer 2

56

Question 3

Which type of bur is a No. 57?

A)Round bur
B)Inverted cone
C)Straight fissure-plain cut
D)Tapered fissure-plain cut
E)Straight fissure-crosscut

Answer 3

Straight fissure-plain cut

Question 4

The dental procedure requires a No. 37 bur for the tray setup. Which bur would you select?

A)Round bur
B)Inverted cone
C)Pear-shaped bur
D)Straight fissure-plain cut
E)Tapered fissure-crosscut

Question 5

Which type of bur is used to remove decay deep in the walls of the preparation once the tooth has been opened?

A)Round bur
B)Inverted cone
C)Straight fissure-plain cut
D)Straight fissure-crosscut
E)Tapered fissure-crosscut

Question 6

A friction grip bur fits into which type of handpiece?

A)High-speed
B)High-speed fiberoptic
C)Slow-speed straight
D)Slow-speed contra-angle

Question 7

Name the type of bur used to help place anatomy in a composite restoration and to equilibrate or adjust occlusion.

A)Round bur
B)Diamond bur
C)Finishing bur
D)A and B are both used.

Question 8

The dentist needs a No. 4 bur for a procedure. Which bur would you choose?

A)Straight fissure-plain cut
B)Straight fissure-crosscut
C)Inverted cone
D)Diamond bur
E)Round bur

Question 9

Which type of bur is used to open a tooth for an endodontic treatment?

A)Round bur
B)Inverted cone
C)Straight fissure-plain cut
D)Straight fissure-crosscut
E)Tapered fissure-crosscut

Question 10

Which of the following is a tapered fissure-plain cut bur?

A)8
B)57
C)168
D)699

Question 11

Which part of the bur that fits into the handpiece?

A)Head
B)Neck
C)Shank

Question 12

When the dentist requests a No. 701 bur for a cavity preparation, what type of bur would you place in the handpiece?

A)Round bur
B)Inverted cone
C)Straight fissure-crosscut
D)Tapered fissure-plain cut
E)Tapered fissure-crosscut

Question 13

A bur with a latch at the end of the shank fits into which type of handpiece?

A)High-speed
B)High-speed fiberoptic
C)Slow-speed straight
D)Slow-speed contra-angle

Question 14

If a tray setup requires a No. 168 bur, which type of bur would you select?

A)Round bur
B)Inverted cone
C)Straight fissure-crosscut
D)Tapered fissure-plain cut
E)Tapered fissure-crosscut

Question 15

Which part of the bur cuts, polishes, or finishes?

A)Shank
B)Neck
C)Head

Question 16

Which bur has horizontal cutting edges and parallels the sides of the preparation?

A)33 1/2
B)57
C)702
D)557

Question 17

What type of bur is a No. 556?

A)Round bur
B)Inverted cone
C)Straight fissure-crosscut
D)Tapered fissure-plain cut
E)Tapered fissure-crosscut

Question 18

Which of the following are parts of a bur?

A)Head
B)Neck
C)Shank
D)All of the above

Question 19

A bur with a straight and long shank fits into which type of handpiece?

A)High-speed
B)High-speed fiberoptic
C)Slow-speed straight
D)Slow-speed contra-angle

Question 20

Which of the following would you select if the dentist requested a No. 330 bur?

A)Round bur
B)Inverted cone
C)Pear-shaped bur
D)Straight fissure-crosscut
E)Tapered fissure-crosscut

Question 21

Which of the following is used to polish restorations, amalgam, composite, and gold?

A)Round finishing bur
B)Flame diamond bur
C)Brown points
D)Green points
E)C and D are both used.

Question 22

Which of the following is not a function of a finishing bur?

A)Finish composite restoration.
B)Equilibrate or adjust occlusion.
C)Finish restoration by restoring anatomy in tooth.
D)Place retention grooves in walls of cavity preparation.

Question 23

Which type of diamond bur is used to reduce a tooth for a crown preparation when parallel walls and flat floors are needed for the restoration?

A)Flame
B)Wheel
C)Flat-end taper
D)Flat-end cylinder

Question 24

What does the notation "S" following a bur number indicate?

A)Straight
B)Single
C)Short
D)None of the above are correct.

Question 25

Which type of diamond bur is used for a crown preparation when subgingival margins are needed?

A)Flame
B)Wheel
C)Flat-end taper
D)Flat-end cylinder

Question 26

Which type of diamond bur is used to reduce a tooth for a crown preparation when a square shoulder is needed?

A)Flame
B)Wheel
C)Flat-end taper
D)Flat-end cylinder

Question 27

What would one use to trim an acrylic custom-made impression tray?

A)Acrylic bur
B)Diamond disc
C)Sandpaper disc
D)Composite disc

Question 28

The rotation instrument designed to contour a composite restoration is a

A)rubber point.
B)sandpaper disc.
C)composite disc.
D)diamond bur wheel.
E)Both B and C are correct.

Question 29

Which type of diamond bur is used to reduce a tooth for a crown preparation on the lingual aspect of anterior teeth and for bulk reduction of incisal edges?

A)Flame
B)Wheel
C)Flat-end taper
D)Flat-end cylinder

Question 30

Which diamond bur is used to reduce a tooth for crown preparation with subgingival margins?

A)Flat-end cylinder
B)Flat-end taper
C)Wheel
D)Flame

Question 31

Which bur forms angles and retention grooves in the walls of a cavity preparation?

A)10
B)57
C)168
D)699
E)Both C and D are correct.

Question 32

Which polishing rubber point is the most abrasive?

A)Brown points
B)Green points
C)White points

Question 33

Which of the following burs is used to remove caries from tooth structure?

A)Round bur
B)Pear-shaped bur
C)Inverted cone bur
D)All of the above

Question 34

What does the notation "L" following a bur number indicate?

A)For lingual use
B)Latch
C)Long
D)None of the above are correct.

Question 35

Darker grit on a composite disc indicates the disc is _______.

A)fine
B)coarse
C)medium
D)The color of the grit is not significant.

Question 36

Which of the following burs has parallel sides without horizontal cutting edges?

A)Straight fissure bur-crosscut
B)Tapered fissure bur-plain cut
C)Tapered fissure bur-crosscut
D)None of the above