Questions and Verified Answers
graded A+ GUARANTEED PASS
Zinc oxide eugenol (ZOE) can be used as a base because it
is soothing to the pulp. This makes it a good choice for
deep, composite restorations.
a. both statements true
b. both false
c. first true, second false
d. first false, second true - ANSWER-c
,The eugenol in ZOE is known for its sedative effect on the
pulp, unless it is in direct contact. ZOE should not be
placed under composite restorations because the
eugenol can interfere with the bonding.
Which of the following describes the appropriate
consistency of a mix of zinc polycarboxylate cement to be
used as a luting agent?
a. secondary
b. doughy
c. stringy
d. primary - ANSWER-d
Cements used as luting agents are mixed to a primary
consistency that allows the material to flow. Secondary
consistency is the consistency cements used for bases
are mixed to. Doughy and stringy are terms used to
describe acrylic phases.
,For a bonding agent to have good wettability, it must
have a:
a. low contact angle, high viscosity
b. high contact angle, low viscosity
c. low contact angle, low viscosity
d. high contact angle, high viscosity - ANSWER-c
T/F : the hygienist may preform this service without the
personable supervision of a licensed dentist.
applying or removing dental dam - ANSWER-F
The most appropriate type of gypsum product to use for
orthodontic cast is: - ANSWER-TYPE III
(3)
You are assisting in a restorative procedure when the
dentist indicates that because the decay is extensive,
, there has been a minor pulp exposure. You are asked to
prepare a liner. Which material would you choose?
a. zinc oxide eugenol (ZOE)
b. calcium hydroxide
c. zinc phosphate
d. traditional glass ionomer - ANSWER-b
Calcium hydroxide is used as a low-strength base/liner in
preps where dentin is no longer covered. ZOE is
contraindicated in pulp exposures due to pulpal irritation
from the eugenol. Zinc phosphate is acidic and will also
irritate the pulp. Traditional glass ionomers are not used
as liners.
Which of the flowing cements uses a glass slab and metal
spatula for mixing?
a. zinc phosphate