106 MDG MARYLAND GENERAL DENTAL ASSISTING
EXPANDED FUCTION EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) Q&A
2027 |INSTANT DOWNLAOD PDF
1. What is the primary purpose of dental infection control?
A. Improve the appearance of the dental office
B. Prevent transmission of infectious microorganisms
C. Reduce the cost of dental materials
D. Increase appointment times
Answer: B. Prevent transmission of infectious microorganisms
Rationale: Infection-control procedures are designed to break
the chain of infection and protect patients and dental
personnel.
2. Which organization publishes recommendations widely
used for infection prevention in dental settings?
A. CDC
B. IRS
C. OSHA only
D. FDA only
Answer: A. CDC
Rationale: The Centers for Disease Control and Prevention
,provides evidence-based infection-prevention guidance for
dental healthcare settings.
3. Which item is considered personal protective equipment
(PPE)?
A. Dental chair
B. Face shield
C. Amalgamator
D. X-ray sensor
Answer: B. Face shield
Rationale: Face shields protect the face and eyes from splashes
and potentially infectious materials.
4. What is the most effective routine method for removing
microorganisms from hands?
A. Wearing gloves continuously
B. Hand hygiene
C. Applying lotion
D. Using a paper towel without washing
Answer: B. Hand hygiene
Rationale: Proper hand hygiene is a fundamental measure for
preventing healthcare-associated infection.
5. When should dental personnel perform hand hygiene?
,A. Only at the beginning of the workday
B. Before and after patient-care activities as appropriate
C. Only when hands appear dirty
D. Only after removing a mask
Answer: B. Before and after patient-care activities as
appropriate
Rationale: Hand hygiene should be performed at appropriate
points before and after patient care and after glove removal.
6. What is the primary purpose of wearing examination
gloves?
A. Improve instrument grip only
B. Protect against contact with potentially infectious materials
C. Replace hand hygiene
D. Sterilize the hands
Answer: B. Protect against contact with potentially infectious
materials
Rationale: Gloves provide a barrier but do not replace proper
hand hygiene.
7. Which type of instrument penetrates soft tissue or bone
and must be sterile?
A. Noncritical instrument
B. Critical instrument
, C. Administrative instrument
D. Environmental instrument
Answer: B. Critical instrument
Rationale: Critical instruments present a high risk of infection if
contaminated and require sterilization before use.
8. Which instrument contacts mucous membranes but does
not normally penetrate soft tissue?
A. Critical
B. Semicritical
C. Noncritical
D. Disposable office equipment
Answer: B. Semicritical
Rationale: Semicritical instruments contact mucous
membranes or nonintact skin and generally require sterilization
or appropriate high-level processing.
9. Which item is generally classified as noncritical?
A. Surgical forceps
B. Periodontal curette
C. Blood pressure cuff
D. Surgical elevator
EXPANDED FUCTION EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) Q&A
2027 |INSTANT DOWNLAOD PDF
1. What is the primary purpose of dental infection control?
A. Improve the appearance of the dental office
B. Prevent transmission of infectious microorganisms
C. Reduce the cost of dental materials
D. Increase appointment times
Answer: B. Prevent transmission of infectious microorganisms
Rationale: Infection-control procedures are designed to break
the chain of infection and protect patients and dental
personnel.
2. Which organization publishes recommendations widely
used for infection prevention in dental settings?
A. CDC
B. IRS
C. OSHA only
D. FDA only
Answer: A. CDC
Rationale: The Centers for Disease Control and Prevention
,provides evidence-based infection-prevention guidance for
dental healthcare settings.
3. Which item is considered personal protective equipment
(PPE)?
A. Dental chair
B. Face shield
C. Amalgamator
D. X-ray sensor
Answer: B. Face shield
Rationale: Face shields protect the face and eyes from splashes
and potentially infectious materials.
4. What is the most effective routine method for removing
microorganisms from hands?
A. Wearing gloves continuously
B. Hand hygiene
C. Applying lotion
D. Using a paper towel without washing
Answer: B. Hand hygiene
Rationale: Proper hand hygiene is a fundamental measure for
preventing healthcare-associated infection.
5. When should dental personnel perform hand hygiene?
,A. Only at the beginning of the workday
B. Before and after patient-care activities as appropriate
C. Only when hands appear dirty
D. Only after removing a mask
Answer: B. Before and after patient-care activities as
appropriate
Rationale: Hand hygiene should be performed at appropriate
points before and after patient care and after glove removal.
6. What is the primary purpose of wearing examination
gloves?
A. Improve instrument grip only
B. Protect against contact with potentially infectious materials
C. Replace hand hygiene
D. Sterilize the hands
Answer: B. Protect against contact with potentially infectious
materials
Rationale: Gloves provide a barrier but do not replace proper
hand hygiene.
7. Which type of instrument penetrates soft tissue or bone
and must be sterile?
A. Noncritical instrument
B. Critical instrument
, C. Administrative instrument
D. Environmental instrument
Answer: B. Critical instrument
Rationale: Critical instruments present a high risk of infection if
contaminated and require sterilization before use.
8. Which instrument contacts mucous membranes but does
not normally penetrate soft tissue?
A. Critical
B. Semicritical
C. Noncritical
D. Disposable office equipment
Answer: B. Semicritical
Rationale: Semicritical instruments contact mucous
membranes or nonintact skin and generally require sterilization
or appropriate high-level processing.
9. Which item is generally classified as noncritical?
A. Surgical forceps
B. Periodontal curette
C. Blood pressure cuff
D. Surgical elevator
