Deck 2: Enamel Cutting Instruments

Question 1

On a three-number enamel cutting instrument, what does the third number indicate?

A)Angle of the cutting edge of the blade in relation to the handle in millimeters
B)Angle of the blade from the long axis of the shaft in millimeters
C)Width of the blade in tenths of millimeters
D)Length of the blade in millimeters

Answer 1

Angle of the blade from the long axis of the shaft in millimeters

Question 2

Which instrument is used to plane and cleave enamel and to form or accentuate line angles in a cavity preparation, is used with a pulling motion, and has a cutting edge or blade that is almost perpendicular to the handle?

A)Enamel hoe
B)Straight chisel
C)Enamel hatchet
D)Binangle chisel
E)Wedelstaedt chisel

Answer 2

Enamel hoe

Question 3

Which instrument is used to plane and cleave enamel in a cavity preparation, is used with a push motion, and has two angles for the cutting edges?

A)Enamel hoe
B)Straight chisel
C)Enamel hatchet
D)Binangle chisel
E)Wedelstaedt chisel

Answer 3

Binangle chisel

Question 4

On a four-number enamel cutting instrument, what does the third number indicate?

A)Angle of the cutting edge of the blade in relation to the handle in millimeters
B)Angle of the blade from the long axis of the shaft in millimeters
C)Width of the blade in tenths of millimeters
D)Length of the blade in millimeters

Question 5

Which enamel cutting instrument is used in a pull motion?

A)Enamel hoe
B)Straight chisel
C)Enamel hatchet
D)Binangle chisel
E)Wedelstaedt chisel

Question 6

An angle former enamel cutting instrument would be found on which instrument tray setup?

A)Restorative
B)Endodontic
C)Orthodontic
D)Oral surgery

Question 7

Which of the following is the part of the instrument that attaches the handle to the working end?

A)Bevel
B)Blade
C)Shank
D)Beaks

Question 8

Which enamel cutting instrument is used to accentuate line and point angles in internal outline and retention in a cavity preparation?

A)Hatchet
B)Angle former
C)Straight chisel
D)Binangle chisel
E)Gingival margin trimmer

Question 9

The instrument used to remove carious dentin in a cavity preparation is a(n)

A)hoe.
B)hatchet.
C)angle former.
D)spoon excavator.
E)mesial or distal gingival margin trimmer.

Question 10

Which cutting instrument is used to remove decay from the cavity preparation?

A)Enamel hoe
B)Straight chisel
C)Enamel hatchet
D)Binangle chisel
E)Spoon excavator

Question 11

Which instrument is used to remove unsupported enamel?

A)Enamel Hoe
B)Enamel Hatchet
C)Margin Trimmer
D)Wedelstaedt Chisel

Question 12

What does a spoon excavator remove?

A)Carious dentin
B)Temporary cement
C)Temporary crowns
D)Permanent crown during try-in

Question 13

On a three-number enamel cutting instrument, what does the first number indicate?

A)Angle of the cutting edge of the blade in relation to the handle in millimeters
B)Angle of the blade from the long axis of the shaft in millimeters
C)Width of the blade in tenths of millimeters
D)Length of the blade in millimeters

Question 14

Which of the following characteristic describes both the enamel hatchet and enamel hoe?

A)They are both used with a push motion.
B)They are both three-number instruments.
C)They can both only be found as a single-ended instrument.
D)Their cutting blades are almost perpendicular to the instrument handle.

Question 15

If a 15-8-14 enamel hatchet is used in a dental procedure, what is the length of the blade of the instrument?

A)8 mm
B)14 mm
C)15 mm

Question 16

Which instrument (or instruments) is used to plane and cleave enamel?

A)Angle former
B)Straight chisel
C)Wedelstaedt chisel
D)All of the above.
E)Only B and C are correct.

Question 17

Which instrument is used to plane and cleave enamel in a cavity preparation, is used with a push motion, has a single angled cutting edge, and has a curved blade?

A)Enamel hoe
B)Straight chisel
C)Enamel hatchet
D)Binangle chisel
E)Wedelstaedt chisel

Question 18

The instrument used specifically to bevel the cervical walls (floor) of the mesial and/or distal retention areas of the internal walls of a cavity preparation is a(n)

A)hoe.
B)hatchet.
C)angle former.
D)spoon excavator.
E)mesial or distal gingival margin trimmer.

Question 19

On a three-number enamel cutting instrument, what does the second number indicate?

A)Angle of the cutting edge of the blade in relation to the handle in millimeters
B)Angle of the blade from the long axis of the shaft in millimeters
C)Width of the blade in tenths of millimeters
D)Length of the blade in millimeters

Question 20

Which of the following hand instruments is an example of a four-number instrument?

A)Enamel hoe
B)Spoon excavator
C)Wedelstaedt chisel
D)Distal gingival margin trimmer

Question 21

Which of the following is a working end of an instrument?

A)They are both used with a push motion.
B)They are both three-number instruments.
C)They can both only be found as a single-ended instrument.
D)Their cutting blades are almost perpendicular to the instrument handle.