Deck 2: Enamel Cutting Instruments

Question 1

Which of the following is a part of an instrument?

A)Handle
B)Shank
C)Working end
D)All of the above

Answer 1

All of the above

Question 2

On a three-number enamel cutting instrument, the first number indicates

A)the angle of the blade from the long axis of the shaft in centigrade.
B)the width of the blade in tenths of millimeters.
C)the length of the blade in millimeters.
D)the angle of the cutting edge of the blade in relation to the handle in centigrade.

Answer 2

the width of the blade in tenths of millimeters.

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

Answer 3

Binangle chisel

Question 4

On a three-number enamel cutting instrument, the third number indicates

A)the angle of the blade from the long axis of the shaft in centigrade.
B)the width of the blade in tenths of millimeters.
C)the length of the blade in millimeters.
D)the angle of the cutting edge of the blade in relation to the handle in centigrade.

Question 5

On a three-number enamel cutting instrument, the second number indicates

A)the angle of the blade from the long axis of the shaft in centigrade.
B)the width of the blade in tenths of millimeters.
C)the length of the blade in millimeters.
D)the angle of the cutting edge of the blade in relation to the handle in centigrade.

Question 6

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

A)Curette
B)Straight chisel
C)Gingival margin trimmer
D)Angle former
E)B and C

Question 7

Which enamel cutting instrument is used in a pull motion?

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

Question 8

Indicate which enamel cutting instrument is used to remove decay from the cavity preparation.

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

Question 9

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

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

Question 10

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

Question 11

Which of the following characteristics describe both the enamel hatchet and enamel hoe?

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

Question 12

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

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

Question 13

Which instrument is used to plane and cleave enamel in a cavity preparation, is used with a push motion, has one angle for the cutting edge, and has a curved blade?

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

Question 14

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

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

Question 15

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

A)Oral surgery tray setup
B)Restorative tray setup
C)Endodontic tray setup
D)Orthodontic tray setup
E)Binangle chisel

Question 16

On a four-number enamel cutting instrument, the third number indicates

A)the angle of the blade from the long axis of the shaft in centigrade.
B)the width of the blade in tenths of millimeters.
C)the length of the blade in millimeters.
D)the angle of the cutting edge of the blade in relation to the handle in centigrade.

Question 17

Used on restorative tray setups, the main function of a spoon excavator is:

A)To remove carious dentin
B)To remove temporary crowns
C)To remove temporary cement in temporary restoration
D)To remove permanent crown during try-in

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

Question 19

The enamel cutting instrument used to accentuate line and point angles in internal outline and retention in a cavity preparation is a(n)

A)hatchet.
B)binangle chisel.
C)straight chisel.
D)angle former.
E)gingival margin trimmer.