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DENTAL
RADIOLOGY
DHYG 1120

Practice Tests
4 TESTS
FLASH CARDS

Hygienist to future Hygienist

Radiology Practice Test 1

1
...
Hydroquinone
B
...
Sodium Sulfite
D
...
What solution is the cleaning agent or the remover: ___________________
A
...
Sodium Thiosulfate
C
...
Sodium Carbonate
3
...
X-rays
B
...
Light
D
...
In the procession solutions, the developer is acidic and the fixer
is acidic:
A
...

B
...

C
...
Both statements are false
5
...
Halides
B
...
Sulfates
D
...
What should be done with the film when a previous radiograph
of the maxillary premolar did not show the distal of the canine:
A
...
Lower the film in the mouth
C
...
Move the film backward in the mouth
7
...
Outdated films
B
...
Improper white light
D
...
Which type of film would be nonscreen film:
A
...
Periapical film
C
...
On the image seen on a film, the areas, which have not been
exposed to radiation, will appear:
A
...
Black
10
...

A
...
Film too light
C
...
Dark spots
11
...
True
B
...
Normal crestal interproximal lamina dura appears
________________________ on a radiograph:
A
...
Radiolucent
C
...
Radiopaque
13
...
Radiopaque
B
...
Absent
D
...
On the canine exposure, the inverted Y is a junction of the
maxillary sinus and the:
A
...
Canine fossa
C
...
Incisive foramen
15
...
Above
B
...
Lingual Aspect
D
...
A radiolucent band, which is seen in the mandibular anterior
central x-ray, is what anatomical landmark:
A
...
Mental fossa
C
...
Lateral fossa
Hygienist to future Hygienist

17
...
Nasoglossal
B
...
Palatoglossal
D
...
Which of the following would appear radiolucent:
A
...
The lamina dura
C
...
The zygoma
19
...

A
...
Superior
C
...
Lingual
20
...
Coronoid process
B
...
Mylohyoid ridge
D
...
D 2
...
C 4
...
B 6
...
C 8
...
A 10
...
A 12
...
C 14
...
C 16
...
A 18
...
C 20
...
A 0
...
A dentist decides to change their exposure mA from 10 mA
and 1
...
What would the new mA
setting be?
3
...
When changing a tube PID from 16 inches to 8 inches, the
intensity of the x-ray beam will be decreased by how much?
5
...
5 second,
what would the new exposure time be?
6
...

The x-ray unit is currently set at 0
...

What is the new exposure time going to be?
Hygienist to future Hygienist

ANSWERS:

1
...
10 mA x 1
...
1/4 x 60/1 = 60/4 = 15 Impulses
4
...
5 x 2 = 1 second
6
...
2 seconds

Hygienist to future Hygienist

Radiology Practice Test 3

1
...
Using fast film; F-speed is the fastest
B
...
Using the paralleling technique
D
...
Using a rectangular lead lined PID
2
...
Pediatric projection
B
...
Cross sectional projection
D
...
If the silver crystal size is large, what geometric principle
would be observed on the film:
A
...
Decreased distortion
C
...
Decreased sharpness
4
...
Triangle
B
...
Bisector
D
...
All of the following are part of the film, except:
A
...
Emulsion/Gelatin
C
...
Foil

Hygienist to future Hygienist

6
...
The right-angle
technique requires the use of:
A
...
Two periapical films with a tube head shift
C
...
One number 2 size film and one number 4 size film
7
...
Adhesive
B
...
Silver halide crystals
D
...
In the SLOB localization technique if the missing object appears
to move in the same direction as the tube head shift, the object is
on the:
A
...
Lingual
C
...
Distal
9
...
Less patient comfort
B
...
Less object film distance and therefore less magnification
D
...
Why is a film holder necessary when using the paralleling
technique?
A
...
To make sure the film is at a right angle to the teeth
C
...
None of the above
Hygienist to future Hygienist

11
...
Radiopaque
B
...
Radioresistant
D
...
According to the Guidelines for Prescribing Radiographs, all of the
following patient classes are identified except:
A
...
Adolescents
C
...
Infants
13
...
Brain cells
B
...
Epithelial cells
D
...
A step wedge may be used to:
A
...
Check the darkroom for light leaks
C
...
Determine the speed of the film
15
...
Direct
B
...
Dose
D
...
A dose equivalent is the term used to compare biological effects
of various types of radiation on a common scale:
A
...
False

Hygienist to future Hygienist

17
...
Exposure of the film and development of the image
B
...
The state of cell mitosis
D
...
The term which is equal to the amount of absorbed
radiation is:
A
...
Dose equivalent
C
...
REM
19
...
Aberration in cell division
B
...
Change in function
D
...
A Maximum Accumulated Dose is the amount of radiation
which an occupational worker should receive in the whole body
within a year:
A
...
False
ANSWERS: 1
...
C 3
...
C 5
...
D 7
...
B
9
...
A 11
...
D 13
...
A 15
...
A
17
...
C 19
...
B
Hygienist to future Hygienist

Radiology Practice Test 4

1
...
2 impulses
...
0
...
0
...
0
...
0
...
Object film distance is the distance between the tooth and the film,
and is the same distance as the focal film distance:
A
...
Only the second half of the statement is true
C
...
Both the first and second half of the statements are false
3
...
An increase in density; the film appears darker
B
...
A decrease in density; the film appears darker
D
...
Distortion results when:
A
...
X-ray beam is perpendicular to the object and film
C
...
Using a short object-film distance
5
...
The intensity is four time greater
B
...
The intensity is the distance squared
D
...
Choose the answer that best describes ling scale contrast:
A
...
The type of contrast preferred for the diagnosis of interproximal caries
C
...
Produced with low kVp settings
7
...
Distance from the source to the film
B
...
Speed of the film
D
...
A diagnostic film is produced with 10 mA and 0
...
What
exposure time is needed to produce the same film at 15 mA:
A
...
1 impulses
B
...
2 impulses
C
...
3 impulses
D
...
4 impulses
9
...
mA
B
...
Exposure time
D
...
A dental radiograph will appear darker if the operator decreases the:
A
...
kVp
C
...
Target-film distance
11
...
M shell
B
...
K shell
D
...
A ____________________ wavelength has more energy and travels at a
faster speed
...
Short
B
...
Place the following is correct order from shortest to longest
wavelengths:
1
...
Microwaves
3
...
Visible light
5
...
1,2,3,4,5
B
...
1,5,4,2,3
D
...
5,1,4,2,3
14
...
True
B
...
All of the following are true of the properties of x-rays except:
A
...
They travel at the speed of light
C
...
They travel in straight lines
E
...
Velocity refers to the _______________ of the wave:
A
...
Length
C
...
Path

Hygienist to future Hygienist

17
...
Protons
B
...
Neutrons
D
...
Soft x-rays have short wavelengths and exhibit greater
penetrating power:
A
...
False
19
...
Protons
B
...
Photons
D
...
In the x-ray tubehead (where x-rays are generated), x-rays
are produced at the:
A
...
Anode

ANSWERS: 1
...
A 3
...
A 5
...
C 7
...
B 9
...
D 11
...
A 13
...
B 15
...
C 17
...
B 19
...
B
Hygienist to future Hygienist

RADIOLOGY FLASH CARDS

Front

PRINT DOUBLE SIDED

Which chemical in the
processing solutions is
identified as the
accelerator and soften the
emulsion:

What solution is the
cleaning agent or the
remover: __________________

Screen film is sensitive and
exposed by:

In the procession solutions,
the developer is acidic and
the fixer is acidic:

Intensifying screen
crystals are:

What should be done with
the film when a previous
radiograph of the maxillary
premolar did not show the
distal of the canine:

All of the following would
cause a fogged film error
except:

Which type of film would be
nonscreen film:

Radiology Practice Test 1

1

Hygienist to future Hygienist

RADIOLOGY FLASH CARDS

Back

A
...
Sodium Thiosulfate
C
...
Sodium Carbonate

A
...
Potassium bromide
C
...
Sodium Carbonate

A
...

B
...

C
...
Both statements are false

A
...
Heat
C
...
Ultraviolet rays

A
...
Lower the film in the mouth
C
...
Move the film backward in the
mouth

A
...
Phosphors
C
...
Bromides
A
...
Light leaks in the
darkroom
C
...
Contaminated solutions

A
...
Periapical film
C
...


The anterior nasal spine
is super to the incisive
foramen:

Normal crestal
interproximal lamina dura
appears
________________________ on a
radiograph:

Normal crestal
interproximal lamina
dura without disease can
appear _________________on a
radiograph:

On the canine exposure,
the inverted Y is a
junction of the maxillary
sinus and the:

The internal oblique ridge
is ________________________the
external oblique ridge on
the mandible:

A radiolucent band, which
is seen in the mandibular
anterior central x-ray, is
what anatomical
landmark:

Radiology Practice Test 1

3

Hygienist to future Hygienist

RADIOLOGY FLASH CARDS

Back

A
...
Film too light
C
...
Dark spots

A
...
Black

A
...
Radiolucent
C
...
Radiopaque

A
...
False

A
...
Canine fossa
C
...
Incisive foramen

A
...
Radiolucent
C
...
Angled

A
...
Mental fossa
C
...
Lateral fossa

A
...
Below
C
...
Buccal Aspect

Radiology Practice Test 1

4

Hygienist to future Hygienist

RADIOLOGY FLASH CARDS

Front

PRINT DOUBLE SIDED

All of the following are
seen in air spaces on a
panograph except:

Which of the following
would appear radiolucent:

On the skull the external
oblique line is located on
the __________________ aspect
of the mandible
...
The palate
B
...
Mandibular canal
D
...
Nasoglossal
B
...
Palatoglossal
D
...
Coronoid process
B
...
Mylohyoid ridge
D
...
Inferior
B
...
Buccal
D
...

The right-angle technique
requires the use of:

What part of the film
absorbs radiation after it
has been struck with an xray photon:

In the SLOB localization
technique if the missing
object appears to move in
the same direction as the
tube head shift, the object
is on the:

Radiology Practice Test 3

1

Hygienist to future Hygienist

RADIOLOGY FLASH CARDS

Back

A
...
Using an 8-inch PID
C
...
Using higher kVp settings
E
...
Pediatric projection
B
...
Cross sectional
projection
D
...
Increased distortion
B
...
Increased sharpness
D
...
Triangle
B
...
Bisector
D
...
Two number 2 size film
B
...
Two number 4 size films
D
...
Film Base
B
...
Silver Halide
D
...
Buccal
B
...
Mesial
D
...
Adhesive
B
...
Silver halide
crystals
D
...
To make sure the film is parallel
to the teeth
B
...
To make sure the film is
perpendicular to the teeth
D
...
Children
B
...
Adults
D
...
Radiopaque
B
...
Radioresistant
D
...
Brain cells
B
...
Epithelial cells
D
...
Check the quality of the
processing chemicals
B
...
Determine processing times when
chemical temperatures vary
D
...
Direct
B
...
Dose
D
...
True
B
...
Less patient comfort
B
...
Less object film distance and
therefore less magnification
D
...
Exposure of the film and
development of the image
B
...
The state of cell mitosis
D
...
Exposure
B
...
RAD
D
...
Aberration in cell
division
B
...
Change in function
D
...
True
B
...
2
impulses
...
30 impulses
...
Only the first half of the
statement is true
B
...
Both the first and second half of the
statements are true
D
...
0
...
0
...
0
...
0
...
Object and film are not
parallel
B
...
Using a small focal spot
D
...
An increase in density; the film
appears darker
B
...
A decrease in density; the film appears
darker
D
...
Also known as high contrast,
seeing many blacks and whites
B
...
Also known as low contrast,
seeing many shades of gray
D
...
The intensity is four time greater
B
...
The intensity is the distance
squared
D
...
Distance from the
source to the film
B
...
Speed of the film
D
...
0
...
0
...
0
...
0
...


Place the following is correct
order from shortest to longest
wavelengths:

1
...
Radiowaves
2
...
Visible light
5
...
mA
B
...
Exposure time
D
...
mA
B
...
Exposure time
D
...
Short
B
...
M shell
B
...
K shell
D
...
True
B
...
1,2,3,4,5
B
...
1,5,4,2,3
D
...
5,1,4,2,3
A
...
They travel at the speed of
light
C
...
They travel in straight lines
E
...
Energy
B
...
Speed
D
...
Protons
B
...
Neutrons
D
...
True
B
...
Protons
B
...
Photons
D
...
Cathode
B

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