ADEX Restorative Functions Practice Questions
with Explanations 2026/2027 – Complete
Exam-Style Questions with Correct Answers &
Detailed Rationales | Verified & Reliable
1.
During preparation of a posterior tooth for a composite
restoration, which approach best preserves sound tooth
structure while providing adequate access to the carious
lesion?
A. Extend the preparation routinely to all primary grooves
B. Remove all enamel surrounding the tooth, regardless of
caries involvement
C. Limit preparation to the diseased or defective structure
while maintaining appropriate restorative access
D. Create a wide, uniform preparation with rounded internal
line angles
Correct answer: C
The contemporary philosophy for adhesive posterior
restorations emphasizes conservation of sound tooth structure.
The preparation should provide adequate access for caries
removal, matrix placement, instrumentation, and restoration
while avoiding unnecessary extension. Routine extension of all
,grooves is not indicated simply because they are anatomically
present.
2.
A clinician is preparing a Class II composite restoration. Which
factor is most important for achieving predictable proximal
contour?
A. Increasing the occlusal preparation width
B. Using an appropriate matrix system with proper wedging
and adaptation
C. Leaving the contact completely open during insertion
D. Placing the entire restoration as one large increment
Correct answer: B
The matrix establishes the proximal wall and helps control
contour and contact. Proper wedging adapts the matrix at the
gingival margin and helps prevent excess restorative material. A
well-adapted matrix is particularly important for creating a
cleansable proximal contour and an appropriate contact.
3.
Why is isolation especially important when placing an adhesive
composite restoration?
,A. It increases the polymerization temperature
B. It eliminates the need for etching
C. Moisture contamination can compromise adhesion and
marginal integrity
D. It increases the viscosity of the bonding agent
Correct answer: C
Contamination by saliva, blood, or sulcular fluid can interfere
with adhesive procedures and reduce bond reliability. Effective
isolation helps maintain the substrate in the condition required
by the selected adhesive system and improves control during
placement.
4.
A deep carious lesion is being excavated and a pinpoint pulpal
exposure occurs. Under current ADEX restorative procedures,
what should the candidate do regarding an identified pulp
exposure?
A. Immediately place a pulp cap before reporting it
B. Cover it with composite and report it at the end
C. Continue preparation without documenting it
D. Diagnose and report the pulp exposure promptly according
to the examination procedure
Correct answer: D
, Current ADEX restorative procedures require prompt
identification and electronic reporting of a pulp exposure before
completion of the preparation. The current examination process
discontinued evaluation of pulp-cap placement. Misdiagnosis or
failure to recognize an exposure carries a substantial
examination consequence
5.
Which finding most strongly supports replacing a defective
existing composite restoration rather than merely polishing it?
A. Slight surface staining without a defect
B. Minor discoloration that does not compromise the
restoration
C. A clinically significant marginal defect associated with
recurrent caries
D. Normal surface texture
Correct answer: C
Replacement is generally indicated when a restoration has a
clinically significant defect that compromises tooth health or
restorative function. Surface staining alone does not necessarily
indicate failure, whereas recurrent caries associated with a
defective margin is a biologically significant problem.
with Explanations 2026/2027 – Complete
Exam-Style Questions with Correct Answers &
Detailed Rationales | Verified & Reliable
1.
During preparation of a posterior tooth for a composite
restoration, which approach best preserves sound tooth
structure while providing adequate access to the carious
lesion?
A. Extend the preparation routinely to all primary grooves
B. Remove all enamel surrounding the tooth, regardless of
caries involvement
C. Limit preparation to the diseased or defective structure
while maintaining appropriate restorative access
D. Create a wide, uniform preparation with rounded internal
line angles
Correct answer: C
The contemporary philosophy for adhesive posterior
restorations emphasizes conservation of sound tooth structure.
The preparation should provide adequate access for caries
removal, matrix placement, instrumentation, and restoration
while avoiding unnecessary extension. Routine extension of all
,grooves is not indicated simply because they are anatomically
present.
2.
A clinician is preparing a Class II composite restoration. Which
factor is most important for achieving predictable proximal
contour?
A. Increasing the occlusal preparation width
B. Using an appropriate matrix system with proper wedging
and adaptation
C. Leaving the contact completely open during insertion
D. Placing the entire restoration as one large increment
Correct answer: B
The matrix establishes the proximal wall and helps control
contour and contact. Proper wedging adapts the matrix at the
gingival margin and helps prevent excess restorative material. A
well-adapted matrix is particularly important for creating a
cleansable proximal contour and an appropriate contact.
3.
Why is isolation especially important when placing an adhesive
composite restoration?
,A. It increases the polymerization temperature
B. It eliminates the need for etching
C. Moisture contamination can compromise adhesion and
marginal integrity
D. It increases the viscosity of the bonding agent
Correct answer: C
Contamination by saliva, blood, or sulcular fluid can interfere
with adhesive procedures and reduce bond reliability. Effective
isolation helps maintain the substrate in the condition required
by the selected adhesive system and improves control during
placement.
4.
A deep carious lesion is being excavated and a pinpoint pulpal
exposure occurs. Under current ADEX restorative procedures,
what should the candidate do regarding an identified pulp
exposure?
A. Immediately place a pulp cap before reporting it
B. Cover it with composite and report it at the end
C. Continue preparation without documenting it
D. Diagnose and report the pulp exposure promptly according
to the examination procedure
Correct answer: D
, Current ADEX restorative procedures require prompt
identification and electronic reporting of a pulp exposure before
completion of the preparation. The current examination process
discontinued evaluation of pulp-cap placement. Misdiagnosis or
failure to recognize an exposure carries a substantial
examination consequence
5.
Which finding most strongly supports replacing a defective
existing composite restoration rather than merely polishing it?
A. Slight surface staining without a defect
B. Minor discoloration that does not compromise the
restoration
C. A clinically significant marginal defect associated with
recurrent caries
D. Normal surface texture
Correct answer: C
Replacement is generally indicated when a restoration has a
clinically significant defect that compromises tooth health or
restorative function. Surface staining alone does not necessarily
indicate failure, whereas recurrent caries associated with a
defective margin is a biologically significant problem.
