106-MDG Maryland General Dental Assisting
Expanded Function Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the primary role of a dental assistant with expanded
functions (EFDA) in Maryland?
A. Diagnose oral diseases
B. Perform surgical extractions
C. Assist the dentist and perform delegated procedures
D. Prescribe medications
Answer: C
Rationale: Expanded Function Dental Assistants (EFDAs) support
dentists by performing specific procedures that are legally delegated,
but they do not diagnose, prescribe, or perform surgery.
2. Which organization regulates dental assisting functions in
Maryland?
,A. American Dental Association
B. Maryland State Board of Dental Examiners
C. Occupational Safety and Health Administration
D. Centers for Disease Control
Answer: B
Rationale: The Maryland State Board of Dental Examiners establishes
and enforces rules governing dental assistants and expanded
functions within the state.
3. Which procedure is typically allowed for an EFDA under
supervision?
A. Administer general anesthesia
B. Place and contour restorative materials
C. Extract teeth
D. Diagnose periodontal disease
Answer: B
Rationale: EFDAs are commonly trained and authorized to place and
contour restorations under a dentist’s supervision.
,4. What type of supervision is generally required for expanded
functions in Maryland?
A. Personal supervision only
B. General or direct supervision depending on the task
C. No supervision
D. Remote supervision only
Answer: B
Rationale: Maryland law specifies supervision levels depending on the
procedure, often requiring direct or general supervision.
5. What is the purpose of rubber dam placement?
A. Improve patient comfort
B. Isolate the treatment area
C. Reduce chair time
D. Prevent tooth extraction
Answer: B
Rationale: A rubber dam isolates teeth, keeps the field dry, and
improves visibility and infection control.
, 6. Which material is commonly used for temporary restorations?
A. Amalgam
B. Composite resin
C. Zinc oxide eugenol
D. Gold alloy
Answer: C
Rationale: Zinc oxide eugenol is widely used for temporary fillings due
to its sedative effect on the pulp.
7. What is the main purpose of etching enamel?
A. Strengthen enamel
B. Clean the tooth
C. Create micro-retention for bonding
D. Remove decay
Answer: C
Rationale: Acid etching roughens enamel microscopically to enhance
bonding of restorative materials.
8. What is the most common curing method for composite resin?
A. Air drying
Expanded Function Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the primary role of a dental assistant with expanded
functions (EFDA) in Maryland?
A. Diagnose oral diseases
B. Perform surgical extractions
C. Assist the dentist and perform delegated procedures
D. Prescribe medications
Answer: C
Rationale: Expanded Function Dental Assistants (EFDAs) support
dentists by performing specific procedures that are legally delegated,
but they do not diagnose, prescribe, or perform surgery.
2. Which organization regulates dental assisting functions in
Maryland?
,A. American Dental Association
B. Maryland State Board of Dental Examiners
C. Occupational Safety and Health Administration
D. Centers for Disease Control
Answer: B
Rationale: The Maryland State Board of Dental Examiners establishes
and enforces rules governing dental assistants and expanded
functions within the state.
3. Which procedure is typically allowed for an EFDA under
supervision?
A. Administer general anesthesia
B. Place and contour restorative materials
C. Extract teeth
D. Diagnose periodontal disease
Answer: B
Rationale: EFDAs are commonly trained and authorized to place and
contour restorations under a dentist’s supervision.
,4. What type of supervision is generally required for expanded
functions in Maryland?
A. Personal supervision only
B. General or direct supervision depending on the task
C. No supervision
D. Remote supervision only
Answer: B
Rationale: Maryland law specifies supervision levels depending on the
procedure, often requiring direct or general supervision.
5. What is the purpose of rubber dam placement?
A. Improve patient comfort
B. Isolate the treatment area
C. Reduce chair time
D. Prevent tooth extraction
Answer: B
Rationale: A rubber dam isolates teeth, keeps the field dry, and
improves visibility and infection control.
, 6. Which material is commonly used for temporary restorations?
A. Amalgam
B. Composite resin
C. Zinc oxide eugenol
D. Gold alloy
Answer: C
Rationale: Zinc oxide eugenol is widely used for temporary fillings due
to its sedative effect on the pulp.
7. What is the main purpose of etching enamel?
A. Strengthen enamel
B. Clean the tooth
C. Create micro-retention for bonding
D. Remove decay
Answer: C
Rationale: Acid etching roughens enamel microscopically to enhance
bonding of restorative materials.
8. What is the most common curing method for composite resin?
A. Air drying
