EFDA Chairside Assisting & Patient Management 3 — Questions and Answers
Question 1: Which of the following best describes the role of the EFDA during a four-handed dentistry procedure?
- Performing independent restorations without dentist oversight
- Anticipating the dentist's needs and passing instruments efficiently (Correct answer)
- Documenting the procedure in the patient chart only
- Managing the front desk while the dentist works
Correct answer: Anticipating the dentist's needs and passing instruments efficiently
Four-handed dentistry centers on the assistant anticipating needs and maintaining a smooth workflow with efficient instrument transfer.
Question 2: Cotton rolls used for moisture control should be placed:
- Only in the maxillary vestibule
- In the mucobuccal fold and near the Stensen's duct for mandibular procedures (Correct answer)
- Over the tongue to prevent movement
- Directly on the tooth being treated
Correct answer: In the mucobuccal fold and near the Stensen's duct for mandibular procedures
For mandibular procedures, cotton rolls in the mucobuccal fold and near Stensen's duct control parotid salivary flow effectively.
Question 3: When a patient expresses dental anxiety before a procedure, the EFDA should:
- Assure them that the procedure will not hurt at all
- Acknowledge their feelings, explain each step simply, and offer a signal to pause if needed (Correct answer)
- Tell them to relax and that there is nothing to worry about
- Administer nitrous oxide without consulting the dentist
Correct answer: Acknowledge their feelings, explain each step simply, and offer a signal to pause if needed
Acknowledging anxiety, offering simple explanations, and establishing a stop signal empowers the patient and builds trust.
Question 4: The zone directly in front of the patient's mouth (12 o'clock position) is called the:
- Operator zone
- Assistant zone
- Transfer zone
- Static zone (Correct answer)
Correct answer: Static zone
The static zone (12 o'clock) is used for the mobile cart, delivery unit, and materials, keeping it clear of the operator and assistant.
Question 5: When taking vital signs before a dental procedure, a blood pressure reading of 160/100 mmHg in an adult patient should prompt the EFDA to:
- Proceed normally as this is within acceptable limits
- Document the reading and immediately notify the dentist before treatment begins (Correct answer)
- Reschedule the appointment for next week
- Administer antihypertensive medication
Correct answer: Document the reading and immediately notify the dentist before treatment begins
A BP of 160/100 (Stage 2 hypertension) must be reported to the dentist who will determine whether treatment should proceed.
Question 6: Dental dam application in EFDA scope primarily serves to:
- Replace the need for local anesthesia
- Isolate the operative field, prevent aspiration, and improve visibility (Correct answer)
- Reduce chair time by eliminating need for cotton rolls
- Substitute for rubber dam clamps
Correct answer: Isolate the operative field, prevent aspiration, and improve visibility
Dental dam isolates the tooth, protects the airway from debris, and provides a dry, visible field for restorative work.
Question 7: During an amalgam procedure, trituration refers to:
- Condensing amalgam into the cavity preparation
- Mechanically mixing alloy powder and mercury in an amalgamator (Correct answer)
- Carving the final occlusal anatomy
- Burnishing the margins of the restoration
Correct answer: Mechanically mixing alloy powder and mercury in an amalgamator
Trituration is the mechanical mixing of amalgam alloy powder with mercury in an amalgamator to produce a workable plastic mass.
EFDA Chairside Assisting & Patient Management 3
Which of the following best describes the role of the EFDA during a four-handed dentistry procedure?