HOTTEL EFDA COMBINED QUESTIONS AND
ANSWERS || ALREADY GRADED A+ |
GUARANTEED PASS | LATETST VERSION 2025
What composite resin has been the most popular?
a. Nano-filled
b. Micro-filled
c. Hybrid
d. Micro-hybrid - ANSWER-c. Hybrid
What cavity prep allows maximal tooth structure to be conserved with minimal
pulp irritation?
a. Conventional
b. Modified - ANSWER-b. Modified
With the use of current bonding systems, bases and liners are not needed unless
remaining dentin is less than .5mm.
a. True
b. False - ANSWER-a. True
The etchant should remain on the surface, carefully spread the gel onto the
dentin for a total of _____ seconds.
a. 15
b. 10
c. 30 - ANSWER-c. 30 seconds
,While using a mylar strip, the strip should extend at least ___mm beyond the
prepared gingival and incisal margins.
a. 0.5mm
b. 2mm
c. 1.5mm
d. 1mm - ANSWER-d. 1mm
A reliable bond will eliminate the need for retentive undercuts.
a. True
b. False - ANSWER-a. True
Composite is an inorganic matrix of resin containing organic filler particles.
a. True
b. False - ANSWER-b. False
Composite resin restorations with _____ filler particles are not as polishable as
unfilled resin because the polymer matrix wears faster than inorganic filler
particles leaving a rough surface. - ANSWER-Large
Nano-fills have an average particle size made up of "clusters" between _____
microns.
a. 0.1-0.2
b. 0.01-0.02
c. 0.5-1.5
d. None of the above - ANSWER-b. 0.01-0.02
______ is the process through which composite resins harden. - ANSWER-
Polymerization
,Composite is an organic matrix resin containing inorganic filler particles.
a. True
b. False - ANSWER-a. True
What is the range percentage of phosphoric acid?
a. 15-20%
b. 32-40%
c. 5-10% - ANSWER-b. 32-40%
When do you NOT need to use pulpal protection?
a. 0.5mm-1.5mm into the dentin
b. <0.5mm dentin remaining
c. You should always use it - ANSWER-a. 0.5mm-1.5mm into the dentin
The specific dental materials to be placed in cavity preps depend on....
a. Types of restorative material used
b. Depth of cavity prep
c . Condition of the pulp
d. Where the tooth is located
e. All except D - ANSWER-e. All except D
Finishing and polishing should not be done until the amalgam has reached its
final set, approximately _____ after it has been placed and carved.
a. 1-2 weeks
b. 12-24 hours
c. 24-48 hours - ANSWER-c. 24-48 hours
, Following good carving techniques, finishing and polishing amalgams help
reduce _____. - ANSWER-Plaque
______ finishing and polishing will disturb the crystalline structure of the
hardened amalgam and will weaken the restoration. - ANSWER-Premature
Any necessary finishing procedure should being by _____ the occlusion and
_____ margins with an explorer. - ANSWER-Marking, evaluating
If pressure is applied to the point of the bur it will scratch the amalgam. It
should be applied to the side of the bur.
a. True
b. False - ANSWER-a. True
If I want to eliminate a submarginal area of less that 0.2mm, what color tapered
stone do I use?
a. Green
b. White - ANSWER-b. White
Name the five cusps found on the mandibular 1st molar: - ANSWER-1.
Mesiobuccal
2. Distobuccal
3. Distal
4. Distolingual
5. Mesiolingual
The pulp serves 4 functions.
1. Formative or developmental
2. Nutritive
ANSWERS || ALREADY GRADED A+ |
GUARANTEED PASS | LATETST VERSION 2025
What composite resin has been the most popular?
a. Nano-filled
b. Micro-filled
c. Hybrid
d. Micro-hybrid - ANSWER-c. Hybrid
What cavity prep allows maximal tooth structure to be conserved with minimal
pulp irritation?
a. Conventional
b. Modified - ANSWER-b. Modified
With the use of current bonding systems, bases and liners are not needed unless
remaining dentin is less than .5mm.
a. True
b. False - ANSWER-a. True
The etchant should remain on the surface, carefully spread the gel onto the
dentin for a total of _____ seconds.
a. 15
b. 10
c. 30 - ANSWER-c. 30 seconds
,While using a mylar strip, the strip should extend at least ___mm beyond the
prepared gingival and incisal margins.
a. 0.5mm
b. 2mm
c. 1.5mm
d. 1mm - ANSWER-d. 1mm
A reliable bond will eliminate the need for retentive undercuts.
a. True
b. False - ANSWER-a. True
Composite is an inorganic matrix of resin containing organic filler particles.
a. True
b. False - ANSWER-b. False
Composite resin restorations with _____ filler particles are not as polishable as
unfilled resin because the polymer matrix wears faster than inorganic filler
particles leaving a rough surface. - ANSWER-Large
Nano-fills have an average particle size made up of "clusters" between _____
microns.
a. 0.1-0.2
b. 0.01-0.02
c. 0.5-1.5
d. None of the above - ANSWER-b. 0.01-0.02
______ is the process through which composite resins harden. - ANSWER-
Polymerization
,Composite is an organic matrix resin containing inorganic filler particles.
a. True
b. False - ANSWER-a. True
What is the range percentage of phosphoric acid?
a. 15-20%
b. 32-40%
c. 5-10% - ANSWER-b. 32-40%
When do you NOT need to use pulpal protection?
a. 0.5mm-1.5mm into the dentin
b. <0.5mm dentin remaining
c. You should always use it - ANSWER-a. 0.5mm-1.5mm into the dentin
The specific dental materials to be placed in cavity preps depend on....
a. Types of restorative material used
b. Depth of cavity prep
c . Condition of the pulp
d. Where the tooth is located
e. All except D - ANSWER-e. All except D
Finishing and polishing should not be done until the amalgam has reached its
final set, approximately _____ after it has been placed and carved.
a. 1-2 weeks
b. 12-24 hours
c. 24-48 hours - ANSWER-c. 24-48 hours
, Following good carving techniques, finishing and polishing amalgams help
reduce _____. - ANSWER-Plaque
______ finishing and polishing will disturb the crystalline structure of the
hardened amalgam and will weaken the restoration. - ANSWER-Premature
Any necessary finishing procedure should being by _____ the occlusion and
_____ margins with an explorer. - ANSWER-Marking, evaluating
If pressure is applied to the point of the bur it will scratch the amalgam. It
should be applied to the side of the bur.
a. True
b. False - ANSWER-a. True
If I want to eliminate a submarginal area of less that 0.2mm, what color tapered
stone do I use?
a. Green
b. White - ANSWER-b. White
Name the five cusps found on the mandibular 1st molar: - ANSWER-1.
Mesiobuccal
2. Distobuccal
3. Distal
4. Distolingual
5. Mesiolingual
The pulp serves 4 functions.
1. Formative or developmental
2. Nutritive
