FLORIDA EFDA CERTIFICATION EXAMINATION
PRACTICE EXAM | STUDY GUIDE | TESTBANK | LATEST
UPDATE 2026/2027 | QUESTIONS | 100% CORRECT
ANSWERS
## Table of Contents
1. Florida Laws and Rules
2. Infection Prevention and OSHA Compliance
3. Dental Anatomy and Occlusion
4. Restorative Expanded Functions
5. Dental Materials
6. Radiography and Radiation Safety
7. Patient Assessment and Medical Emergencies
8. Chairside Procedures and Clinical Decision-Making
9. Ethics, Documentation, and Risk Management
10. Professional Judgment and Quality Assurance
Introduction
The Florida EFDA Certification Examination evaluates the knowledge, judgment, and
clinical decision-making required of Expanded Functions Dental Assistants practicing
under Florida law. Candidates are expected to demonstrate proficiency in restorative
procedures, dental materials, infection prevention, radiographic techniques, patient
safety, legal responsibilities, and professional ethics. Questions frequently require the
application of clinical principles to realistic patient scenarios rather than simple
memorization. This practice examination reflects current professional standards and
emphasizes critical thinking, compliance with accepted clinical protocols, and
evidence-based best practices to help candidates prepare for advanced certification-
level testing.
Question 1
A dentist delegates placement of a matrix band and wedge for a Class II composite
restoration. During the procedure, the EFDA notices an open gingival margin caused
by improper adaptation. What is the BEST immediate action?
,A. Continue because the dentist will adjust the restoration later.
B. Remove and correctly adapt the matrix before restorative placement.
C. Add additional composite to compensate for the gap.
D. Ask the patient to bite firmly to improve adaptation.
Correct Answer: B
Explanation: Proper matrix adaptation is essential for achieving correct proximal
contour and preventing gingival overhangs. The EFDA should correct the matrix
before restorative placement.
Question 2
A patient develops dizziness while seated during restorative treatment. Blood
pressure is 88/58 mmHg, pulse is rapid, and skin is pale. What is the MOST
appropriate initial intervention?
A. Place the patient upright immediately.
B. Position the patient supine with legs elevated.
C. Administer oral glucose.
D. Begin CPR.
Correct Answer: B
Explanation: The presentation is consistent with syncope. Positioning the patient
supine with elevated legs improves cerebral blood flow.
Question 3
While placing a resin-based composite, contamination with saliva occurs after
etching but before adhesive application. What should be done?
A. Continue with bonding.
B. Dry with air only.
,C. Re-etch according to manufacturer recommendations before bonding.
D. Place composite immediately.
Correct Answer: C
Explanation: Salivary contamination compromises bond strength. Re-etching or
following manufacturer instructions restores optimal bonding conditions.
Question 4
Which property of a sectional matrix system primarily contributes to achieving tight
proximal contacts?
A. Increased matrix thickness
B. Separation ring placement
C. Lower curing intensity
D. Reduced wedge size
Correct Answer: B
Explanation: Separation rings create slight tooth separation, allowing restoration of
proper proximal contact after matrix removal.
Question 5
An EFDA observes that a sterilizer's biological monitoring test indicates failure. What
is the MOST appropriate response?
A. Continue using the sterilizer until maintenance is scheduled.
B. Remove the sterilizer from service and follow office protocols for investigation.
C. Repeat the test after patient treatment.
D. Ignore the result if chemical indicators passed.
Correct Answer: B
, Explanation: Biological indicator failure requires immediate investigation and
discontinuation of sterilizer use until resolved.
Question 6
A patient reports taking warfarin and presents with spontaneous gingival bleeding.
Before restorative treatment, the MOST appropriate action is to:
A. Proceed without notifying the dentist.
B. Inform the dentist and verify the patient's medical status.
C. Recommend discontinuing warfarin.
D. Delay treatment indefinitely.
Correct Answer: B
Explanation: Anticoagulant therapy requires appropriate assessment and
communication with the supervising dentist.
Question 7
Which factor MOST directly affects polymerization shrinkage stress in composite
restorations?
A. Shade selection
B. C-factor
C. Matrix color
D. Patient age
Correct Answer: B
Explanation: Higher configuration factors (C-factor) increase polymerization stress
due to greater bonded surfaces.
PRACTICE EXAM | STUDY GUIDE | TESTBANK | LATEST
UPDATE 2026/2027 | QUESTIONS | 100% CORRECT
ANSWERS
## Table of Contents
1. Florida Laws and Rules
2. Infection Prevention and OSHA Compliance
3. Dental Anatomy and Occlusion
4. Restorative Expanded Functions
5. Dental Materials
6. Radiography and Radiation Safety
7. Patient Assessment and Medical Emergencies
8. Chairside Procedures and Clinical Decision-Making
9. Ethics, Documentation, and Risk Management
10. Professional Judgment and Quality Assurance
Introduction
The Florida EFDA Certification Examination evaluates the knowledge, judgment, and
clinical decision-making required of Expanded Functions Dental Assistants practicing
under Florida law. Candidates are expected to demonstrate proficiency in restorative
procedures, dental materials, infection prevention, radiographic techniques, patient
safety, legal responsibilities, and professional ethics. Questions frequently require the
application of clinical principles to realistic patient scenarios rather than simple
memorization. This practice examination reflects current professional standards and
emphasizes critical thinking, compliance with accepted clinical protocols, and
evidence-based best practices to help candidates prepare for advanced certification-
level testing.
Question 1
A dentist delegates placement of a matrix band and wedge for a Class II composite
restoration. During the procedure, the EFDA notices an open gingival margin caused
by improper adaptation. What is the BEST immediate action?
,A. Continue because the dentist will adjust the restoration later.
B. Remove and correctly adapt the matrix before restorative placement.
C. Add additional composite to compensate for the gap.
D. Ask the patient to bite firmly to improve adaptation.
Correct Answer: B
Explanation: Proper matrix adaptation is essential for achieving correct proximal
contour and preventing gingival overhangs. The EFDA should correct the matrix
before restorative placement.
Question 2
A patient develops dizziness while seated during restorative treatment. Blood
pressure is 88/58 mmHg, pulse is rapid, and skin is pale. What is the MOST
appropriate initial intervention?
A. Place the patient upright immediately.
B. Position the patient supine with legs elevated.
C. Administer oral glucose.
D. Begin CPR.
Correct Answer: B
Explanation: The presentation is consistent with syncope. Positioning the patient
supine with elevated legs improves cerebral blood flow.
Question 3
While placing a resin-based composite, contamination with saliva occurs after
etching but before adhesive application. What should be done?
A. Continue with bonding.
B. Dry with air only.
,C. Re-etch according to manufacturer recommendations before bonding.
D. Place composite immediately.
Correct Answer: C
Explanation: Salivary contamination compromises bond strength. Re-etching or
following manufacturer instructions restores optimal bonding conditions.
Question 4
Which property of a sectional matrix system primarily contributes to achieving tight
proximal contacts?
A. Increased matrix thickness
B. Separation ring placement
C. Lower curing intensity
D. Reduced wedge size
Correct Answer: B
Explanation: Separation rings create slight tooth separation, allowing restoration of
proper proximal contact after matrix removal.
Question 5
An EFDA observes that a sterilizer's biological monitoring test indicates failure. What
is the MOST appropriate response?
A. Continue using the sterilizer until maintenance is scheduled.
B. Remove the sterilizer from service and follow office protocols for investigation.
C. Repeat the test after patient treatment.
D. Ignore the result if chemical indicators passed.
Correct Answer: B
, Explanation: Biological indicator failure requires immediate investigation and
discontinuation of sterilizer use until resolved.
Question 6
A patient reports taking warfarin and presents with spontaneous gingival bleeding.
Before restorative treatment, the MOST appropriate action is to:
A. Proceed without notifying the dentist.
B. Inform the dentist and verify the patient's medical status.
C. Recommend discontinuing warfarin.
D. Delay treatment indefinitely.
Correct Answer: B
Explanation: Anticoagulant therapy requires appropriate assessment and
communication with the supervising dentist.
Question 7
Which factor MOST directly affects polymerization shrinkage stress in composite
restorations?
A. Shade selection
B. C-factor
C. Matrix color
D. Patient age
Correct Answer: B
Explanation: Higher configuration factors (C-factor) increase polymerization stress
due to greater bonded surfaces.
