,STUVIA EXAM LIBRARY
EXAMINATION DOCUMENT 2026/2027
EFDA - Comprehensive Test Bank
400 Verified Q&A; | NGN-Aligned
A+ VERIFIED
Expanded Function Dental Auxiliary
, TABLE OF CONTENTS
All Different Questions - Simple & Clear (Q1-Q100)
Infection Control & Materials (Q101-Q200)
Radiology, Safety & Emergencies (Q201-Q300)
Clinical Functions & Judgment (Q301-Q400)
Answer Key
, Question 1: What is correct regarding calcium hydroxide liner purpose?
A. calcium hydroxide liner purpose should follow standard protocol per CDC/ADA/DANB for safety and
effectiveness
B. Ignore infection control for this
C. Reuse single-use item without sterilization
D. Diagnose independently as EFDA
Correct answer: A.
Rationale: calcium hydroxide liner purpose requires following established protocol to ensure safety, effectiveness,
and legal scope. Skipping steps or exceeding scope causes failure or liability.
Question 2: What is correct regarding enamel etch time 15-30 sec?
A. Use expired material for enamel etch time 15-30 sec
B. enamel etch time 15-30 sec should follow standard protocol per CDC/ADA/DANB for safety and
effectiveness
C. No isolation needed
D. No documentation needed
Correct answer: B.
Rationale: Correct protocol for enamel etch time 15-30 sec ensures proper outcome and compliance with CDC,
ADA, and DANB guidelines.
Question 3: What is correct regarding selective etch enamel only?
A. Skip hand hygiene
B. No PPE for selective etch enamel only
C. selective etch enamel only should follow standard protocol per CDC/ADA/DANB for safety and
effectiveness
D. Practice beyond EFDA scope
Correct answer: C.
Rationale: Following standard for selective etch enamel only prevents contamination, failure, and legal issues
while maintaining patient safety.
Question 4: What is correct regarding smear layer definition?
A. Ignore allergy alert
B. Place without dentist supervision
C. Omit informed consent
D. smear layer definition should follow standard protocol per CDC/ADA/DANB for safety and effectiveness
Correct answer: D.
Rationale: Standard protocol for smear layer definition is required to maintain safety, retention, and compliance
with direct supervision requirements.
Question 5: What is correct regarding total etch steps?
A. total etch steps should follow standard protocol per CDC/ADA/DANB for safety and effectiveness
B. Ignore infection control for this
C. Reuse single-use item without sterilization
D. Diagnose independently as EFDA
Correct answer: A.
Rationale: total etch steps requires following established protocol to ensure safety, effectiveness, and legal scope.
Skipping steps or exceeding scope causes failure or liability.
EXAMINATION DOCUMENT 2026/2027
EFDA - Comprehensive Test Bank
400 Verified Q&A; | NGN-Aligned
A+ VERIFIED
Expanded Function Dental Auxiliary
, TABLE OF CONTENTS
All Different Questions - Simple & Clear (Q1-Q100)
Infection Control & Materials (Q101-Q200)
Radiology, Safety & Emergencies (Q201-Q300)
Clinical Functions & Judgment (Q301-Q400)
Answer Key
, Question 1: What is correct regarding calcium hydroxide liner purpose?
A. calcium hydroxide liner purpose should follow standard protocol per CDC/ADA/DANB for safety and
effectiveness
B. Ignore infection control for this
C. Reuse single-use item without sterilization
D. Diagnose independently as EFDA
Correct answer: A.
Rationale: calcium hydroxide liner purpose requires following established protocol to ensure safety, effectiveness,
and legal scope. Skipping steps or exceeding scope causes failure or liability.
Question 2: What is correct regarding enamel etch time 15-30 sec?
A. Use expired material for enamel etch time 15-30 sec
B. enamel etch time 15-30 sec should follow standard protocol per CDC/ADA/DANB for safety and
effectiveness
C. No isolation needed
D. No documentation needed
Correct answer: B.
Rationale: Correct protocol for enamel etch time 15-30 sec ensures proper outcome and compliance with CDC,
ADA, and DANB guidelines.
Question 3: What is correct regarding selective etch enamel only?
A. Skip hand hygiene
B. No PPE for selective etch enamel only
C. selective etch enamel only should follow standard protocol per CDC/ADA/DANB for safety and
effectiveness
D. Practice beyond EFDA scope
Correct answer: C.
Rationale: Following standard for selective etch enamel only prevents contamination, failure, and legal issues
while maintaining patient safety.
Question 4: What is correct regarding smear layer definition?
A. Ignore allergy alert
B. Place without dentist supervision
C. Omit informed consent
D. smear layer definition should follow standard protocol per CDC/ADA/DANB for safety and effectiveness
Correct answer: D.
Rationale: Standard protocol for smear layer definition is required to maintain safety, retention, and compliance
with direct supervision requirements.
Question 5: What is correct regarding total etch steps?
A. total etch steps should follow standard protocol per CDC/ADA/DANB for safety and effectiveness
B. Ignore infection control for this
C. Reuse single-use item without sterilization
D. Diagnose independently as EFDA
Correct answer: A.
Rationale: total etch steps requires following established protocol to ensure safety, effectiveness, and legal scope.
Skipping steps or exceeding scope causes failure or liability.
