RDA EXAM / RDA EXAM 1 ACTUAL 2026/2027 PRACTICE
QUESTIONS AND STUDY GUIDE COMPLETE ACCURATE
EXAM REAL QUESTIONS WITH WELL ELABORATED
ANSWERS AND DETAILED RATIONALES (RELIABLE
ANSWERS) LATEST UPDATED VERSION 2026 EDITION
|GUARANTEED PASS A+ |FULL REVISED RDA EXAM
1|INSTANT DOWNLOAD PDF |BRAND NEW!
1. Which of the following is the most effective method for preventing
the transmission of infectious diseases in the dental setting?
A) Wearing gloves at all times
B) Using sterile instruments
C) Hand hygiene
D) Wearing face masks
Correct Answer: C – Hand hygiene
Rationale: Hand hygiene (handwashing with soap and water or
using an alcohol-based hand rub) is the single most important
procedure for preventing the spread of infection from germs and
viruses in healthcare settings.
,2. The type of gloves used during disinfection and cleanup
procedures is called:
A) Utility gloves
B) Vinyl gloves
C) Latex gloves
D) Overgloves
Correct Answer: A – Utility gloves
Rationale: Utility gloves are heavy-duty gloves designed specifically
for disinfection, cleanup, and housekeeping procedures. They
provide greater protection against chemicals and sharps compared to
patient examination gloves.
3. Direct Supervision refers to:
A) Dentist is in the building but not necessarily in the operatory
B) Dentist is on premises and examines the treatment performed by
DA or RDA before releasing patient
C) Dentist is out of the office but has scheduled auxiliary to be at
work
D) Dentist provides instruction by telephone
Correct Answer: B – Dentist is on premises and examines the
treatment performed by DA or RDA before releasing patient
,Rationale: Direct supervision requires the dentist to be on the
premises and personally examine the treatment performed by the
dental assistant or RDA before the patient is released.
4. General Supervision means:
A) Dentist is on premises and examines treatment before patient
release
B) Dentist is out of the office but has scheduled auxiliary to be at
work
C) Dentist is physically present in the operatory during all
procedures
D) Dentist provides real-time instruction via video conference
Correct Answer: B – Dentist is out of the office but has scheduled
auxiliary to be at work
Rationale: Under general supervision, the dentist is out of the office
but has scheduled the auxiliary to be at work, allowing certain tasks
to be performed without the dentist physically present.
5. Under General Supervision, the RDA may perform:
A) Pulp vitality testing and cementation of temporaries
B) Mouth mirror inspection, placement and removal of sedative
dressings, and expose radiographs
C) Placement of rubber dams and topical anesthetic
D) Taking impressions for crowns and bridges
, Correct Answer: B – Mouth mirror inspection, placement and
removal of sedative dressings, and expose radiographs
Rationale: Under general supervision, the RDA may perform mouth
mirror inspection, place and remove sedative dressings, and expose
radiographs.
6. An impression for a "Hawley Retainer" may legally be taken by:
A) RDA under general supervision
B) Dental assistant trainee
C) Dentist only
D) RDA under direct supervision
Correct Answer: C – Dentist only
Rationale: Taking an impression for a Hawley retainer is legally
restricted to the dentist only, as it involves diagnosis and treatment
planning.
7. Under Direct Supervision, the RDA may perform:
A) Only mouth mirror inspection
B) Pulp vitality test, cementation of temporaries, and size stainless
steel bands
C) Placement of rubber dams only
QUESTIONS AND STUDY GUIDE COMPLETE ACCURATE
EXAM REAL QUESTIONS WITH WELL ELABORATED
ANSWERS AND DETAILED RATIONALES (RELIABLE
ANSWERS) LATEST UPDATED VERSION 2026 EDITION
|GUARANTEED PASS A+ |FULL REVISED RDA EXAM
1|INSTANT DOWNLOAD PDF |BRAND NEW!
1. Which of the following is the most effective method for preventing
the transmission of infectious diseases in the dental setting?
A) Wearing gloves at all times
B) Using sterile instruments
C) Hand hygiene
D) Wearing face masks
Correct Answer: C – Hand hygiene
Rationale: Hand hygiene (handwashing with soap and water or
using an alcohol-based hand rub) is the single most important
procedure for preventing the spread of infection from germs and
viruses in healthcare settings.
,2. The type of gloves used during disinfection and cleanup
procedures is called:
A) Utility gloves
B) Vinyl gloves
C) Latex gloves
D) Overgloves
Correct Answer: A – Utility gloves
Rationale: Utility gloves are heavy-duty gloves designed specifically
for disinfection, cleanup, and housekeeping procedures. They
provide greater protection against chemicals and sharps compared to
patient examination gloves.
3. Direct Supervision refers to:
A) Dentist is in the building but not necessarily in the operatory
B) Dentist is on premises and examines the treatment performed by
DA or RDA before releasing patient
C) Dentist is out of the office but has scheduled auxiliary to be at
work
D) Dentist provides instruction by telephone
Correct Answer: B – Dentist is on premises and examines the
treatment performed by DA or RDA before releasing patient
,Rationale: Direct supervision requires the dentist to be on the
premises and personally examine the treatment performed by the
dental assistant or RDA before the patient is released.
4. General Supervision means:
A) Dentist is on premises and examines treatment before patient
release
B) Dentist is out of the office but has scheduled auxiliary to be at
work
C) Dentist is physically present in the operatory during all
procedures
D) Dentist provides real-time instruction via video conference
Correct Answer: B – Dentist is out of the office but has scheduled
auxiliary to be at work
Rationale: Under general supervision, the dentist is out of the office
but has scheduled the auxiliary to be at work, allowing certain tasks
to be performed without the dentist physically present.
5. Under General Supervision, the RDA may perform:
A) Pulp vitality testing and cementation of temporaries
B) Mouth mirror inspection, placement and removal of sedative
dressings, and expose radiographs
C) Placement of rubber dams and topical anesthetic
D) Taking impressions for crowns and bridges
, Correct Answer: B – Mouth mirror inspection, placement and
removal of sedative dressings, and expose radiographs
Rationale: Under general supervision, the RDA may perform mouth
mirror inspection, place and remove sedative dressings, and expose
radiographs.
6. An impression for a "Hawley Retainer" may legally be taken by:
A) RDA under general supervision
B) Dental assistant trainee
C) Dentist only
D) RDA under direct supervision
Correct Answer: C – Dentist only
Rationale: Taking an impression for a Hawley retainer is legally
restricted to the dentist only, as it involves diagnosis and treatment
planning.
7. Under Direct Supervision, the RDA may perform:
A) Only mouth mirror inspection
B) Pulp vitality test, cementation of temporaries, and size stainless
steel bands
C) Placement of rubber dams only
