PA EFDA BOARD EXAM 2025 NEWEST
EXAM QUESTIONS AND CORRECT
ANSWERS | 2025-2026
Post-op sensitivity with posterior restorations can result
from Correct Answer hyper occlusion, over etching and
operative trauma
Which area of a class V amalgam is carved free hand
Correct Answer the central portion
During a class II composite procedure the ring of a
sectional matrix is placed Correct Answer after placing the
wedge
Which situation would cause a composite restoration to
fail? Correct Answer an internal void, moisture
contamination, and improper light curing
When polishing composite its best to go from Correct
Answer Course to Fine
Acid etch technique utilizes Correct Answer 35%
phosphoric acid
The most critical difference that distinguishes composite
material is Correct Answer the particle size
,Direct supervision is defined as the dentist remaining
where while treatment is being preformed Correct Answer
in the facility
EFDAs are not permitted to.. Correct Answer Do anything
Final!
Gingival retraction cord soaked in epinephrine can cause
Correct Answer Tachycardia
acetone, alcohol and water Correct Answer Carrying
agents
Bonding is never used as an Correct Answer lubricant
To prevent post-op sensitivity the EFDA should apply what
as the first increment in a class II prep Correct Answer
flowable
The sequence for finishing and polishing a composite
Correct Answer finishing bur, coarse, medium, fine discs,
polishing paste
Primer must be dispensed immediately to prevent Correct
Answer evaporation
Coronal polishing Correct Answer Removing plaque and
stains from coronal surfaces of teeth
, Polishing does NOT improve the uptake of professionally
applied FL2 therefore polishing is _________ before FL2
application Correct Answer NOT NECESSARY
Exogenous stains are caused by environmental sources
and are classified in to subdivisions including: Correct
Answer Intrinsic and Extrinsic stains
Which is an example of an endodgenous stain? Correct
Answer an excessive amount of fluoride during
development of the tooth
What polishing paste is recommended for use on filled
hybrid composite restoration? Correct Answer Aluminum
oxide
An Oral Prophy includes Correct Answer Removal of
calculus and debris
Extrinsic/Exogenous stain Correct Answer A stain that
may be removed from the surface of the teeth(food and
drink)
Intrinsic/Endogenous stain Correct Answer A stain that
cannot be removed for the surface of the
teeth(smoking,tobacco,dental amalgam)
Which is the most common technique for stain removal?
Correct Answer Rubber cup polishing
EXAM QUESTIONS AND CORRECT
ANSWERS | 2025-2026
Post-op sensitivity with posterior restorations can result
from Correct Answer hyper occlusion, over etching and
operative trauma
Which area of a class V amalgam is carved free hand
Correct Answer the central portion
During a class II composite procedure the ring of a
sectional matrix is placed Correct Answer after placing the
wedge
Which situation would cause a composite restoration to
fail? Correct Answer an internal void, moisture
contamination, and improper light curing
When polishing composite its best to go from Correct
Answer Course to Fine
Acid etch technique utilizes Correct Answer 35%
phosphoric acid
The most critical difference that distinguishes composite
material is Correct Answer the particle size
,Direct supervision is defined as the dentist remaining
where while treatment is being preformed Correct Answer
in the facility
EFDAs are not permitted to.. Correct Answer Do anything
Final!
Gingival retraction cord soaked in epinephrine can cause
Correct Answer Tachycardia
acetone, alcohol and water Correct Answer Carrying
agents
Bonding is never used as an Correct Answer lubricant
To prevent post-op sensitivity the EFDA should apply what
as the first increment in a class II prep Correct Answer
flowable
The sequence for finishing and polishing a composite
Correct Answer finishing bur, coarse, medium, fine discs,
polishing paste
Primer must be dispensed immediately to prevent Correct
Answer evaporation
Coronal polishing Correct Answer Removing plaque and
stains from coronal surfaces of teeth
, Polishing does NOT improve the uptake of professionally
applied FL2 therefore polishing is _________ before FL2
application Correct Answer NOT NECESSARY
Exogenous stains are caused by environmental sources
and are classified in to subdivisions including: Correct
Answer Intrinsic and Extrinsic stains
Which is an example of an endodgenous stain? Correct
Answer an excessive amount of fluoride during
development of the tooth
What polishing paste is recommended for use on filled
hybrid composite restoration? Correct Answer Aluminum
oxide
An Oral Prophy includes Correct Answer Removal of
calculus and debris
Extrinsic/Exogenous stain Correct Answer A stain that
may be removed from the surface of the teeth(food and
drink)
Intrinsic/Endogenous stain Correct Answer A stain that
cannot be removed for the surface of the
teeth(smoking,tobacco,dental amalgam)
Which is the most common technique for stain removal?
Correct Answer Rubber cup polishing
