Which test film result indicates that the automatic processor is functioning properly? correct
answers The unexposed film is clear and dry.
A periapical view extends beyond the apices of the tooth: correct answers 2 to 3 mm.
Which exposure is particularly beneficial to the orthodontic patient? correct answers
Cephalometric.
Dental x-rays are which type of radiation? correct answers Electromagnetic.
The dental assistant tests four films, from four different shipments, as part of a quality control
measure; each is unwrapped in the darkroom and processed with fresh chemicals. Which box of
film is safe to use? correct answers Box 1: processed test film is clear with a light blue tint.
Which is an extension of the x-ray tubehead used to direct the x-ray beam? correct answers
Position indicating device (PID)
A fogged film appears: correct answers Gray and lacks detail and contrast.
Dental x-rays do NOT: correct answers Make atoms radioactive.
According to the Consumer-Patient Radiation Health and Safety Act, individuals who take dental
radiographs must be: correct answers Trained and certified.
Which maintains aseptic technique when removing the patient's lead apron? correct answers Don
overgloves to remove the lead apron.
Rules of radiation protection for the operator include all except: correct answers Never stand
closer than 3 feet from the x-ray unit during an exposure.
Failure to add replenisher, as needed each day, to an automatic processor will result in: correct
answers Poor-quality films.
Dental x-rays travel: correct answers With a wavelike motion.
Gloves are NOT worn in which step? correct answers Load the PSP plates into the scanning
device.
Which radiograph is prescribed for the evaluation of the skeletal structures of the face? correct
answers Cephalometric
Extraoral images are recommended for evaluating: correct answers Large areas of the jaw.
, Which statement is true? correct answers The dentist is ultimately responsible for the diagnostic
quality of all radiographs exposed in his or her office.
To ____________ is to convert an image into digital form for processing by a computer. correct
answers Digitize.
A light-tight device that holds extraoral film and intensifying screens is a: correct answers
Cassette.
In many states, the lead foil in radiographic packets is considered: correct answers Hazardous.
When fixer is full strength, a film will become transparent or "clear" within: correct answers 2
minutes.
Commercially available barrier envelopes: correct answers Minimize contamination after
exposure of the film.
Which best describes the focal trough in panoramic imaging? correct answers Area of ideal focus
Primary radiation is: correct answers Often referred to as the useful beam.
Which best describes the infection control protocol for digital sensors? correct answers Cleaning
and disinfecting procedures vary according to the manufacturer.
Which type of radiation is most useful to the dental patient? correct answers Primary.
Intensifying screens should be checked periodically for: correct answers Scratches.
A grid should only be used: correct answers When absolutely necessary, because the exposure
time must be increased.
A bitewing film shows the _______ of both the __________ and __________. correct answers
Crowns; maxilla; mandible.
A darkroom safelight must be mounted at least _____ feet from the work surface. correct
answers 4.
Skull radiography is most commonly used in: correct answers Oral surgery and orthodontics.
The effect of radiation exposure is: correct answers Cumulative.
Which is true? correct answers Duplicating film is never exposed to x-rays.
Which produces a three-dimensional radiographic image? correct answers Cone beam computed
tomography.