RDA Exam: Questions & Answers
,Supernumerary teeth are best detected using what type of image receptor? (Ans-
panoramic
The most common radiographic exposure used to evaluate a dental implant on an adult is:
bitewing.
panoramic.
occlusal. periapical.
(Ans- periapical
Compared to a dentulous patient, radiographic exposure time on an edentulous adult
patient should:
remain unchanged decrease
be doubled increase
(Ans- decrease
Which image would be best utilized to see the relationship of the alveolar bone?
Periapical Vertical
bitewing
Horizontal bitewing Occlusal
(Ans- vertical bitewing
Where is the most common area in the oral cavity for a dentigerous cyst? Around the
third molars
Around the canines Between the
central incisors
Between the premolars (Ans- around the third molars
,After using a lead apron on a patient for digital radiograph exposure, it should be:
sprayed with high level disinfectant. covered
with a barrier.
wiped with intermediate disinfectant.
folded and stored in a closed cupboard for future use. (Ans-
wiped with intermediate disinfectant
The total destruction of microorganisms and spores on reusable instruments is
accomplished by:
disinfecting.
sterilizing.
ultrasonic immersion. spraying
with a germicide.
(Ans- sterilizing
A panoramic image appears to have a "reverse smile" when the: Frankfort plane is
angled upward.
midsagittal plane is angled to the right.
midsagittal plane is angled to the left.
Frankfort plane is angled downward.
(Ans- Frankfort plane is angled upward
On a full mouth series with eighteen images, how many anterior images are exposed?
5
6
7
8
(Ans- 6
To view an abscess on tooth #25, the best radiographic exposure is a/an occlusal.
panoramic.
, bitewing.
periapical.
(Ans- periapical
Which of the following regulates the manufacturing and installation of x-ray equipment?
American Dental Association Federal
Government
Local Government State
Government
(Ans- Federal Government
During radiographic exposures, semi-critical items that must be sterilized or disposed of
include:
sensor positioning devices.
tubehead.
exposure buttons. PID.
(Ans- sensor positioning devices
ALARA is primarily concerned with the radiation that is terrestrial.
artificial.
environmental.
cosmic.
(Ans- artificial
On an anterior image, the anterior alveolar crest normally appears: flat and
smooth
as a triangular-shaped radiopacity as a
dense radiopaque line pointed and sharp
(Ans- pointed and sharp
,Supernumerary teeth are best detected using what type of image receptor? (Ans-
panoramic
The most common radiographic exposure used to evaluate a dental implant on an adult is:
bitewing.
panoramic.
occlusal. periapical.
(Ans- periapical
Compared to a dentulous patient, radiographic exposure time on an edentulous adult
patient should:
remain unchanged decrease
be doubled increase
(Ans- decrease
Which image would be best utilized to see the relationship of the alveolar bone?
Periapical Vertical
bitewing
Horizontal bitewing Occlusal
(Ans- vertical bitewing
Where is the most common area in the oral cavity for a dentigerous cyst? Around the
third molars
Around the canines Between the
central incisors
Between the premolars (Ans- around the third molars
,After using a lead apron on a patient for digital radiograph exposure, it should be:
sprayed with high level disinfectant. covered
with a barrier.
wiped with intermediate disinfectant.
folded and stored in a closed cupboard for future use. (Ans-
wiped with intermediate disinfectant
The total destruction of microorganisms and spores on reusable instruments is
accomplished by:
disinfecting.
sterilizing.
ultrasonic immersion. spraying
with a germicide.
(Ans- sterilizing
A panoramic image appears to have a "reverse smile" when the: Frankfort plane is
angled upward.
midsagittal plane is angled to the right.
midsagittal plane is angled to the left.
Frankfort plane is angled downward.
(Ans- Frankfort plane is angled upward
On a full mouth series with eighteen images, how many anterior images are exposed?
5
6
7
8
(Ans- 6
To view an abscess on tooth #25, the best radiographic exposure is a/an occlusal.
panoramic.
, bitewing.
periapical.
(Ans- periapical
Which of the following regulates the manufacturing and installation of x-ray equipment?
American Dental Association Federal
Government
Local Government State
Government
(Ans- Federal Government
During radiographic exposures, semi-critical items that must be sterilized or disposed of
include:
sensor positioning devices.
tubehead.
exposure buttons. PID.
(Ans- sensor positioning devices
ALARA is primarily concerned with the radiation that is terrestrial.
artificial.
environmental.
cosmic.
(Ans- artificial
On an anterior image, the anterior alveolar crest normally appears: flat and
smooth
as a triangular-shaped radiopacity as a
dense radiopaque line pointed and sharp
(Ans- pointed and sharp
