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16 Cards in this Set
- Front
- Back
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Every patient should be evaluated individually for dental radiographs.
T/F |
True
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The 8-inch PID is more effective than the 16-inch PID in reducing radiation exposure of the patient.
T/F |
False
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Pointed cones should not be used because of increased scatter radiation.
T/F |
True
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The thyroid collar must be worn for both intraoral and extraoral exposures.
T/F |
False
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If necessary, the dental radiographer may hold a receptor in the patients mouth to ensure a diagnostic image.
T/F |
False
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What is the use of a filter in a dental x-ray tubehead?
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A filter removes low-energy x--rays.
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Which of the following is not a component of inherent filtration?
a. oil b. unleaded glass window c. a leaded cone d. tubehead seal |
A leaded cone
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Which of the following is the most effective method of reducing patient exposure to radiation?
a. lead apron b. fast films c. round PID d. film-holding devices |
Fast Films
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Which of the following position -indicating devices is most effective in reducing patient exposure?
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Rectangular PID
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Which of the following devices restricts the size and shape of the x-ray beam?
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Collimator
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Which of the following is used as a collimator?
a. lead plate b. aluminum plate c. copper plate |
Lead Plate
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Which of the following describes the function of filtration?
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Reduces low-energy waves
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What is the recommended size of the beam at the patient's face?
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2.75 inches
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What term describes the dose of radiation that the body can endure with little to no chance of injury?
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Maximum Permissible Dose
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How should a radiation monitoring badge be worn?
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At waist level when exposing x-ray receptors.
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What is the distance a dental radiographer must maintain during exposure?
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6 feet from tubehead and 90 to 135 degrees to the primary beam.
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