SPECIAL INSTRUCTIONS: For exercises 16 through 23, match the characteristic of
instruments used for cavity preparations in column A with one of the instruments used for
cavity preparations in column B. Items in column B may be used more than once.
COLUMN B
COLUMN A
____ 16. Used to cleave enamel along the lines of
a.
Spoon excavators.
the enamel rods.
b.
Enamel chisels.
____ 17. Darby-Perry Nos. 5, 6, 21, 22.
c.
Gingival margin
____ 18. Used to bevel the enamel at the cervical
trimmers.
seat of the cavity preparation.
____ 19. Wedelstaedt Nos. 41 and 42.
____ 20. Black Nos. 81, 83-86.
____ 21. Used to remove debris and decayed
dentin from the cavity.
____ 22. Black Nos. 77-80.
____ 23. Black Nos. 63-66.
24.
Which instrument(s) would be used to cleave enamel?
a. Enamel chisel.
b. Enamel hatchet.
c.
Hoe.
d. "a" or "b" above.
e. "a" or "b" or "c" above.
MD0503
2-42