Dental Radiation Safety Exam Questions With
Correct Answers 100% Verified.
Use of lead apron in keeping with what concept of patient protection - Answer✔ALARA (As low
as reasonably achievable)
This is required on all x-ray equipment to remove long wavelength x-rays - Answer✔Aluminum
Filter
Maximum Permissible Dose - Answer✔Dose of radiation the body can endure with little or no
injury within a specific period
Maximum Accumulated Dose - Answer✔The maximum accumulated lifetime radiation dose
Film Holding Device - Answer✔reduces exposure to patient and movement of the film and
stabilizes film
What are the three categories of methods for protecting oral health personnel from radiation? -
Answer✔Distance, Shielding, and time
When is the thyroid collar recommended? - Answer✔Intraoral Exam
Inherent Filtration - Answer✔filtration that is built into the x-ray tube. Such as the oil
surrounding the tube and glass window
Added Filtration - Answer✔refers to aluminum discs in the x-ray path between the collimator
and the tubehead in the x-ray machine.
Total Filtration - Answer✔the sum of inherent and added filtration
what material and how much is used in a lead apron? - Answer✔.25mm of lead or its equivalent
what is the ideal place to stand or protection when taking a radio-graph? - Answer✔behind a
structural barrier
this controls the size and shape of the useful beam - Answer✔collimator
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