EFDA OHIO board prep Hottel book Ch4 bases,
liners, and intracoronal temporaries Exam Latest
Update 2025-2026 130 Questions and 100%
Verified Correct Answers Guaranteed A+
0.25 to 0.5mm thick - CORRECT ANSWER: how thick should calcium hydroxide be
placed?
0.5-1.5mm - CORRECT ANSWER: a minimal depth restoration extends about how far
into the dentin? (what to what)
0.5-1.5mm - CORRECT ANSWER: minimal depth preprs only extend into the dentin
how far? they do not require any pulpal protection
0.5mm - CORRECT ANSWER: calcium hydroxide should be placed in a layer how
many mm thick?
1-2 mm - CORRECT ANSWER: if the entire pulpal wall is being covered with a base, it
should be how thick?
1-seal off cut dentinal tubules (preventing chemical irritation to the pulp, and amalgam
from discoloring the tooth)
2- seal off microscopic space between tooth surface and restoration (reducing leakage)
3- can NOT provide thermal insulation (too thin) - CORRECT ANSWER: 3 basic
functions of sealers/liners
10 seconds - CORRECT ANSWER: many new brands of ionomer cement can be mixed
in capsules via a triturator for approximately how long?
,15 seconds on enamel then an additional 15 seconds on the ionomer 30 seconds total -
CORRECT ANSWER: when GI is used as a base how long is the enamel etched, how
long is the ionomer etched, and how long is the prep etched total?
1mm - CORRECT ANSWER: calcium hydroxide should never be more than how far
away from the cavosurface margin
1mm into dentin, but more than 0.5mm from pulp - CORRECT ANSWER: a moderate
depth restoration extends about how far into the tooth?
2 coats - CORRECT ANSWER: how many coats of varnish need to be applied?
2-5% - CORRECT ANSWER: a problem with composite resin is in the shrinkage of the
material during polymerization, what % by volume takes place
30-60 seconds, 40 seconds being ideal - CORRECT ANSWER: mixing time of ionomer
cements should be how long? be sure to always follow manufacturers instructions
5 minutes - CORRECT ANSWER: the initial adherence of GI occurs within how long of
placement?
a reinforcer - CORRECT ANSWER: zinc phosphate cement is used as an insulator and
aluminosilicate-polyacrylic (ASPA) - CORRECT ANSWER: this is the material that
allows for GI to bond directly with enamel, dentin, cementum, and stainless steel
bases and liners - CORRECT ANSWER: these are used to protect the pulp or to aid in
its recovery, or both
before: calcium hydroxide
, after: zinc phosphate - CORRECT ANSWER: when using a cavity varnish which
materials must be applied prior to placement, and which material must be placed after?
before the restorative material is applied
bonds directly to tooth structure and releases fluoride - CORRECT ANSWER: what are
two advantages of using GI?
calcium hydroxide - CORRECT ANSWER: this material is placed as a direct or indirect
pulp cap to stimulate the formation of reparative dentin. The technique is not always
successful but can be used.
calcium hydroxide - CORRECT ANSWER: this material should be applied directly over
the deepest portion, spread in a thin later in areas where the pulp may be nearly
exposed on the pulpal and axial walls
caries
traumatic occlusion
effects of the cutting bur
desiccation
chemical irritation from restorative material
temperature change
dimensional change
lack of marginal seal - CORRECT ANSWER: what are the 9 possible causes of pulpitis?
cavity varnish - CORRECT ANSWER: this type of sealer is composed of
natural/synthetic resins dissolved into an organic volatile solvent
cement/ casting interface - CORRECT ANSWER: the failure of polyacrylic cements is
often at what interface?
liners, and intracoronal temporaries Exam Latest
Update 2025-2026 130 Questions and 100%
Verified Correct Answers Guaranteed A+
0.25 to 0.5mm thick - CORRECT ANSWER: how thick should calcium hydroxide be
placed?
0.5-1.5mm - CORRECT ANSWER: a minimal depth restoration extends about how far
into the dentin? (what to what)
0.5-1.5mm - CORRECT ANSWER: minimal depth preprs only extend into the dentin
how far? they do not require any pulpal protection
0.5mm - CORRECT ANSWER: calcium hydroxide should be placed in a layer how
many mm thick?
1-2 mm - CORRECT ANSWER: if the entire pulpal wall is being covered with a base, it
should be how thick?
1-seal off cut dentinal tubules (preventing chemical irritation to the pulp, and amalgam
from discoloring the tooth)
2- seal off microscopic space between tooth surface and restoration (reducing leakage)
3- can NOT provide thermal insulation (too thin) - CORRECT ANSWER: 3 basic
functions of sealers/liners
10 seconds - CORRECT ANSWER: many new brands of ionomer cement can be mixed
in capsules via a triturator for approximately how long?
,15 seconds on enamel then an additional 15 seconds on the ionomer 30 seconds total -
CORRECT ANSWER: when GI is used as a base how long is the enamel etched, how
long is the ionomer etched, and how long is the prep etched total?
1mm - CORRECT ANSWER: calcium hydroxide should never be more than how far
away from the cavosurface margin
1mm into dentin, but more than 0.5mm from pulp - CORRECT ANSWER: a moderate
depth restoration extends about how far into the tooth?
2 coats - CORRECT ANSWER: how many coats of varnish need to be applied?
2-5% - CORRECT ANSWER: a problem with composite resin is in the shrinkage of the
material during polymerization, what % by volume takes place
30-60 seconds, 40 seconds being ideal - CORRECT ANSWER: mixing time of ionomer
cements should be how long? be sure to always follow manufacturers instructions
5 minutes - CORRECT ANSWER: the initial adherence of GI occurs within how long of
placement?
a reinforcer - CORRECT ANSWER: zinc phosphate cement is used as an insulator and
aluminosilicate-polyacrylic (ASPA) - CORRECT ANSWER: this is the material that
allows for GI to bond directly with enamel, dentin, cementum, and stainless steel
bases and liners - CORRECT ANSWER: these are used to protect the pulp or to aid in
its recovery, or both
before: calcium hydroxide
, after: zinc phosphate - CORRECT ANSWER: when using a cavity varnish which
materials must be applied prior to placement, and which material must be placed after?
before the restorative material is applied
bonds directly to tooth structure and releases fluoride - CORRECT ANSWER: what are
two advantages of using GI?
calcium hydroxide - CORRECT ANSWER: this material is placed as a direct or indirect
pulp cap to stimulate the formation of reparative dentin. The technique is not always
successful but can be used.
calcium hydroxide - CORRECT ANSWER: this material should be applied directly over
the deepest portion, spread in a thin later in areas where the pulp may be nearly
exposed on the pulpal and axial walls
caries
traumatic occlusion
effects of the cutting bur
desiccation
chemical irritation from restorative material
temperature change
dimensional change
lack of marginal seal - CORRECT ANSWER: what are the 9 possible causes of pulpitis?
cavity varnish - CORRECT ANSWER: this type of sealer is composed of
natural/synthetic resins dissolved into an organic volatile solvent
cement/ casting interface - CORRECT ANSWER: the failure of polyacrylic cements is
often at what interface?
