Mastering Dental Assistant Multiple-Choice
Exam Certification *Q&A* (100% Correct)
2025/2026 |VERIFIED|
What is the primary purpose of using a dental dam during a procedure?
A) To improve the patient’s comfort
B) To isolate the treatment area and prevent contamination
C) To enhance th...
Mastering Dental Assistant Multiple-Choice
Exam Certification *Q&A* (100% Correct)
2025/2026 |VERIFIED|
What is the primary purpose of using a dental dam during a procedure?
A) To improve the patient’s comfort
B) To isolate the treatment area and prevent contamination
C) To enhance the visibility of the procedure
D) To reduce the cost of materials
Which of the following is an essential step in infection control after a dental procedure?
A) Flushing the water lines with distilled water
B) Sterilizing all instruments and equipment
C) Disinfecting the operatory with soap and water
D) Cleaning the treatment area with a hospital-grade disinfectant
What is the main function of a dental assistant during a procedure?
A) To administer local anesthesia
B) To interpret X-ray results
C) To assist the dentist by managing instruments and patient care
D) To schedule follow-up appointments for patients
Which dental instrument is commonly used to remove calculus and plaque from the surface of teeth?
A) Explorers
B) Scalers
C) Burnishers
D) Curettes
When taking X-rays, what is the purpose of using lead aprons for patients?
A) To protect the patient’s body from radiation exposure
B) To provide support during the procedure
C) To enhance the clarity of the image
D) To minimize the discomfort of the X-ray procedure
1
, Which of the following best describes the role of a dental assistant when a patient is undergoing a root
canal procedure?
A) Administering the anesthetic injection
B) Taking the patient’s X-rays during the procedure
C) Assisting with instrument management and patient comfort
D) Performing the procedure under the supervision of the dentist
What is the primary function of a dental curing light?
A) To harden light-sensitive dental materials such as composites
B) To provide illumination for the dentist during the procedure
C) To sterilize instruments before use
D) To help relieve pain after a procedure
What type of sterilization method is most commonly used in dental offices to ensure instruments are
free from bacteria and viruses?
A) Chemical vapor sterilization
B) Dry heat sterilization
C) Autoclave (steam sterilization)
D) Ultrasonic cleaning
Which of the following is NOT an important part of patient education regarding oral health?
A) Discussing the importance of brushing and flossing
B) Encouraging patients to avoid routine checkups
C) Explaining the consequences of poor oral hygiene
D) Providing dietary recommendations for oral health
Which of the following materials is commonly used for making impressions for crowns and bridges?
A) Plaster
B) Alginate
C) Polyvinyl chloride
D) Wax
What should a dental assistant do to prepare a patient for a dental radiograph?
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