DANB CDA General Chairside Assisting — Questions and Answers
Question 1: What is the primary role of a Certified Dental Assistant during a composite restoration procedure?
- Assisting with material preparation, isolation, and instrument transfer (Correct answer)
- Performing the restoration independently
- Administering local anesthesia
- Taking diagnostic radiographs
Correct answer: Assisting with material preparation, isolation, and instrument transfer
During composite restorations, the CDA assists by preparing bonding agents, mixing materials, maintaining isolation with suction, and transferring instruments to the dentist.
Question 2: Which instrument is used to place amalgam into a prepared cavity?
- Amalgam carrier (Correct answer)
- Explorer
- Burnisher
- Scaler
Correct answer: Amalgam carrier
The amalgam carrier is specifically designed to pick up and transport increments of mixed amalgam into the prepared tooth cavity.
Question 3: What is the proper sequence for placing a dental sealant?
- Clean, etch, rinse, dry, apply sealant, cure (Correct answer)
- Etch, clean, apply sealant, rinse, cure
- Apply sealant, etch, rinse, dry, cure
- Clean, dry, apply sealant, etch, cure
Correct answer: Clean, etch, rinse, dry, apply sealant, cure
The correct sealant procedure involves cleaning the tooth surface, acid etching to create microscopic pores, rinsing and drying completely, applying the sealant material, and light-curing to harden it.
Question 4: What does the acronym HVE stand for in dental assisting?
- High-Volume Evacuation (Correct answer)
- High-Velocity Equipment
- Horizontal Vacuum Extractor
- Hygienic Ventilation Equipment
Correct answer: High-Volume Evacuation
High-Volume Evacuation (HVE) refers to the suction system used during dental procedures to remove water, saliva, blood, and debris from the patient's mouth.
Question 5: When transferring instruments to the dentist, which hand technique is typically used?
- Single-handed transfer (Correct answer)
- Two-handed exchange
- Over-the-patient transfer
- Behind-the-back pass
Correct answer: Single-handed transfer
The single-handed transfer technique allows the assistant to simultaneously retrieve the used instrument and deliver the new one using one hand, maximizing efficiency.
Question 6: What is the function of a matrix band in restorative dentistry?
- To provide a temporary wall for the restoration during placement (Correct answer)
- To measure the depth of a cavity
- To polish the final restoration
- To apply fluoride treatment
Correct answer: To provide a temporary wall for the restoration during placement
A matrix band serves as a temporary wall around the tooth being restored, replacing the missing tooth wall to contain the restorative material and help shape the restoration.
DANB CDA General Chairside Assisting
What is the primary role of a Certified Dental Assistant during a composite restoration procedure?