FLORIDA DENTAL ASSISTANT EXPANDED DUTIES ASSESSMENT PRACTICE EXAM |
STUDY GUIDE | TESTBANK | LATEST UPDATE 2026/2027 | QUESTIONS | 100%
CORRECT ANSWERS
## Table of Contents
- Florida Dental Laws and Regulations
- Expanded Duties and Delegation
- Infection Prevention and Sterilization
- Dental Materials and Restorative Procedures
- Matrix Systems and Wedges
- Temporary Restorations
- Sealants and Preventive Procedures
- Dental Radiography and Safety
- Instrumentation and Isolation Techniques
- Ethics, Documentation, and Patient Safety
Introduction
The Florida Dental Assistant Expanded Duties Assessment evaluates a candidate's
competence in performing expanded clinical functions safely, legally, and effectively
under appropriate supervision. Candidates are expected to demonstrate advanced
knowledge of Florida regulations, infection prevention, restorative procedures, dental
materials, radiographic safety, patient management, and clinical decision-making.
Questions emphasize application of knowledge in realistic clinical scenarios requiring
sound professional judgment rather than simple memorization. This practice
examination reflects current professional standards and prepares candidates for
licensing-level assessments through challenging scenario-based questions covering
legal compliance, procedural accuracy, quality assurance, patient safety, and
evidence-based clinical practice.
Question 1
A Florida-certified expanded duties dental assistant is instructed to place and carve a
permanent amalgam restoration while the dentist is away from the office. What is the
most appropriate response?
,A. Perform the procedure because authorization was given earlier.
B. Perform only if another licensed dental assistant is present.
C. Decline because permanent restorative procedures requiring dentist supervision
cannot be completed without required supervision.
D. Proceed if the patient signs informed consent.
Correct Answer: C
Explanation: Florida law limits delegated expanded duties and requires the
appropriate level of supervision. Procedures requiring the dentist's supervision
cannot be completed when that supervision is absent.
Question 2
During composite placement, contamination with saliva occurs immediately after
etching but before bonding. What should be done?
A. Continue with bonding.
B. Air dry thoroughly only.
C. Re-etch according to manufacturer recommendations before proceeding.
D. Place bonding agent over the contamination.
Correct Answer: C
Explanation: Salivary contamination significantly reduces bond strength.
Reconditioning the surface according to manufacturer instructions restores optimal
adhesion.
Question 3
,A sterilization monitor indicates failure of a weekly biological indicator despite
acceptable mechanical and chemical indicators. What is the best immediate action?
A. Ignore the result.
B. Continue sterilization until another biological test is performed next week.
C. Remove the sterilizer from service, investigate the cause, and reprocess affected
instruments.
D. Replace only the chemical indicators.
Correct Answer: C
Explanation: Biological monitoring is the gold standard for sterilization verification.
A failed spore test requires immediate investigation and corrective action.
Question 4
While placing a sectional matrix for a Class II composite restoration, the assistant
notices an open gingival margin. Which adjustment is most appropriate?
A. Remove the wedge.
B. Increase curing time.
C. Reposition or replace the wedge to improve gingival adaptation.
D. Add additional etchant.
Correct Answer: C
Explanation: Proper wedge placement adapts the matrix against the gingival
margin and helps prevent overhangs.
, Question 5
Which factor most directly influences polymerization shrinkage stress in resin
composites?
A. Shade selection
B. Increment thickness
C. Patient age
D. Matrix color
Correct Answer: B
Explanation: Smaller composite increments reduce shrinkage stress and improve
curing effectiveness.
Question 6
A patient reports a latex allergy immediately before rubber dam placement. Which
action is most appropriate?
A. Proceed with latex materials.
B. Cancel treatment automatically.
C. Substitute non-latex isolation materials.
D. Administer topical anesthetic first.
Correct Answer: C
Explanation: Latex-sensitive patients require latex-free products to prevent allergic
reactions.
STUDY GUIDE | TESTBANK | LATEST UPDATE 2026/2027 | QUESTIONS | 100%
CORRECT ANSWERS
## Table of Contents
- Florida Dental Laws and Regulations
- Expanded Duties and Delegation
- Infection Prevention and Sterilization
- Dental Materials and Restorative Procedures
- Matrix Systems and Wedges
- Temporary Restorations
- Sealants and Preventive Procedures
- Dental Radiography and Safety
- Instrumentation and Isolation Techniques
- Ethics, Documentation, and Patient Safety
Introduction
The Florida Dental Assistant Expanded Duties Assessment evaluates a candidate's
competence in performing expanded clinical functions safely, legally, and effectively
under appropriate supervision. Candidates are expected to demonstrate advanced
knowledge of Florida regulations, infection prevention, restorative procedures, dental
materials, radiographic safety, patient management, and clinical decision-making.
Questions emphasize application of knowledge in realistic clinical scenarios requiring
sound professional judgment rather than simple memorization. This practice
examination reflects current professional standards and prepares candidates for
licensing-level assessments through challenging scenario-based questions covering
legal compliance, procedural accuracy, quality assurance, patient safety, and
evidence-based clinical practice.
Question 1
A Florida-certified expanded duties dental assistant is instructed to place and carve a
permanent amalgam restoration while the dentist is away from the office. What is the
most appropriate response?
,A. Perform the procedure because authorization was given earlier.
B. Perform only if another licensed dental assistant is present.
C. Decline because permanent restorative procedures requiring dentist supervision
cannot be completed without required supervision.
D. Proceed if the patient signs informed consent.
Correct Answer: C
Explanation: Florida law limits delegated expanded duties and requires the
appropriate level of supervision. Procedures requiring the dentist's supervision
cannot be completed when that supervision is absent.
Question 2
During composite placement, contamination with saliva occurs immediately after
etching but before bonding. What should be done?
A. Continue with bonding.
B. Air dry thoroughly only.
C. Re-etch according to manufacturer recommendations before proceeding.
D. Place bonding agent over the contamination.
Correct Answer: C
Explanation: Salivary contamination significantly reduces bond strength.
Reconditioning the surface according to manufacturer instructions restores optimal
adhesion.
Question 3
,A sterilization monitor indicates failure of a weekly biological indicator despite
acceptable mechanical and chemical indicators. What is the best immediate action?
A. Ignore the result.
B. Continue sterilization until another biological test is performed next week.
C. Remove the sterilizer from service, investigate the cause, and reprocess affected
instruments.
D. Replace only the chemical indicators.
Correct Answer: C
Explanation: Biological monitoring is the gold standard for sterilization verification.
A failed spore test requires immediate investigation and corrective action.
Question 4
While placing a sectional matrix for a Class II composite restoration, the assistant
notices an open gingival margin. Which adjustment is most appropriate?
A. Remove the wedge.
B. Increase curing time.
C. Reposition or replace the wedge to improve gingival adaptation.
D. Add additional etchant.
Correct Answer: C
Explanation: Proper wedge placement adapts the matrix against the gingival
margin and helps prevent overhangs.
, Question 5
Which factor most directly influences polymerization shrinkage stress in resin
composites?
A. Shade selection
B. Increment thickness
C. Patient age
D. Matrix color
Correct Answer: B
Explanation: Smaller composite increments reduce shrinkage stress and improve
curing effectiveness.
Question 6
A patient reports a latex allergy immediately before rubber dam placement. Which
action is most appropriate?
A. Proceed with latex materials.
B. Cancel treatment automatically.
C. Substitute non-latex isolation materials.
D. Administer topical anesthetic first.
Correct Answer: C
Explanation: Latex-sensitive patients require latex-free products to prevent allergic
reactions.
