Deck 39: Digital Imaging, Dental Film, and Processing Radiographs

Question 1

Automatic film processing requires _____ than manual film processing does.

A)more time
B)less equipment
C)more equipment
D)more space

Answer 1

less equipment

Question 2

The category of digital imaging similar to faxes and video equipment that uses a sensor with a cord attached to the computer is:

A)computed radiograph programs.
B)indirect digital radiography.
C)direct digital radiography.
D)none of the above.

Answer 2

direct digital radiography.

Question 3

The extraoral film placed outside the mouth during x-ray exposure is:

A)periapical.
B)bite-wing.
C)panoramic.
D)occlusal.

Answer 3

panoramic.

Question 4

The most commonly used film size for adult intraoral dentistry is size:

A)#0.
B)#2.
C)#3.
D)#4.

Question 5

____ -speed film is the newest and fastest film currently available.

A)E
B)F
C)Ultra D
D)High speed E

Question 6

The radiographic image is located within the _____ of the radiographic film.

A)acetate film base
B)adhesive layer that attaches the emulsion to the film base
C)gelatin that suspends the emulsion
D)protective layer that protects the emulsion surface

Question 7

The device that intensifies or increases the effect of the radiation and decreases the amount of exposure time needed when exposing an extraoral radiograph is a(n):

A)screen film.
B)film cassette.
C)intensifying screen.
D)nonscreen film.

Question 8

The CCD in direct digital imaging sensors is made of:

A)silicon.
B)phosphor.
C)tungsten.
D)silver halide.

Question 9

All the following are true statements about image plates except they:

A)need to be protected in the patient's mouth with barriers.
B)should be autoclaved.
C)require care not to scratch when handling.
D)are positioned in the mouth like dental film.

Question 10

Film speed is determined by the:

A)thickness of silver bromide salt.
B)thickness of cellulose acetate base.
C)size of the silver bromide crystals.
D)Both a and c are correct.

Question 11

A plastic or metal film cassette holds and protects the extraoral film.During exposure,the side of the cassette the must face the patient is the _____ side.

A)front
B)back
C)right
D)left

Question 12

_____ hardens the film emulsion during film processing.

A)Rinsing
B)Developing
C)Fixing
D)Washing

Question 13

Developer cutoff will result in a _____ border.

A)straight white
B)straight black
C)curved white
D)curved black

Question 14

The purpose of the lead foil in the dental film packet is to:

A)provide stiffness to the film.
B)reduce film fogging.
C)absorb the primary beam.
D)make the packet more flexible and resilient.

Question 15

Dental film holders,used to position and hold the dental x-ray films in the patient's mouth,include:

A)PID.
B)XCP and disposable block.
C)EeZee-Grip and EndoRay.
D)both b and c

Question 16

Positioning instruments in digital radiography:

A)assist in film placement.
B)keep the patient's fingers from being exposed.
C)should not be used.
D)Both a and b are correct.

Question 17

All of following are true statements about storage plates used with (PSP)except:

A)they are made of phosphor.
B)the latent image will stay on the plate for hours.
C)they should not be exposed to light before scanning.
D)they are disposable.

Question 18

Which of the following time and temperature errors will result in reticulation of the film emulsion?

A)Inadequate development time
B)Developer solution too hot
C)Sudden temperature change between developer and water bath
D)Inaccurate timer or thermometer

Question 19

All the following are true statements about the emulsion on a duplicating film except that it:

A)is only on one side.
B)appears shiny.
C)appears dull.
D)is exposed by light.

Question 20

When placing a dental film in the patient's mouth,the white side is placed ____ the tube and the raised dot to the ____.

A)toward; apical
B)toward; occlusal or incisal
C)away; apical
D)away; occlusal or incisal

Question 21

When film emulsion interacts with x-rays,the result is:

A)a visible distortion.
B)a distorted light source.
C)a latent image.
D)none of the above.

Question 22

The safest place to store unopened boxes of dental film is in the:

A)darkroom.
B)furnace room.
C)refrigerator.
D)treatment room.

Question 23

The correct order of steps in manual film processing is:

A)fix, rinse, develop, wash.
B)develop, rinse, fix, wash.
C)fix, wash, rinse, wash.
D)rinse, develop, fix, wash.

Question 24

An extraoral dental x-ray film is:

A)not sensitive to light.
B)less sensitive to light than intraoral film.
C)just as sensitive to light as intraoral film.
D)more sensitive to light than intraoral film.

Question 25

Clear spots on a processed film can be caused by:

A)static electricity.
B)solutions are too warm.
C)fixer contacts film prior to processing.
D)drops of developer on a fixed film.

Question 26

The life of the processing solutions is affected by:

A)the number of films processed.
B)the time elapsed since last change.
C)the size of films processed.
D)all of the above.

Question 27

One reason for a lighter than normal radiograph is the:

A)developer solution is too weak.
B)developer solution is too warm.
C)fixer solution is too weak.
D)film was not properly rinsed.

Question 28

The recommended distance between the safelight and where the films are unwrapped is:

A)2 feet.
B)4 feet.
C)6 feet.
D)as close as possible.

Question 29

Digital radiography requires less radiation than traditional radiography because the:

A)exposure time is increased.
B)sensor is smaller.
C)sensor is more sensitive to x-ray energy.
D)sensor is attached to the computer.

Question 30

When developer solution in an automatic processor is warmer than 83° F,the processed film will appear:

A)dark or black.
B)gray.
C)clear.
D)light.

Question 31

When loading the film into the cassette before exposure (in extraoral radiography),the:

A)film comes preloaded in the cassette.
B)procedure must be done in the darkroom.
C)film may be placed in the holder outside the darkroom.
D)film does not need an intensifying screen.

Question 32

All the following are true statements about digitizing film-based radiographs except:

A)the process is similar to other film duplication.
B)desktop scanners capture the light signal.
C)it duplicates the same detail as the original film.
D)All of the above are true.

Question 33

Solutions should have been changed in the processor 1 week ago.Continuing to use exhausted developer will result in ____ films.

A)dark
B)light
C)white
D)clear

Question 34

The ideal time and temperature for manual developing is:

A)45 seconds at 85° F.
B)5 minutes at 65° C.
C)5 minutes at 68° F.
D)5 minutes at 60° F.

Question 35

When a film passes through fixer solutions before developing,the film will appear:

A)clear.
B)completely black.
C)gray.
D)yellowish-brown.