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BDA RADIOGRAPHY AND RADIOLOGY EXAM NEWEST 2026 ACTUAL
EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED A+|
||PROFESSOR VERIFIED||
What age group is most at risk of radiation induced cancer? -
ANSWER-0-20yrs old, cancer typically (but not exclusively) takes
time to develop. So, taking DNA damage at a young age leaves
more time to develop into something serious.
What do we normally mean when we say "dose" in relation to
medical and dental radiation exposures? - ANSWER-Effective
dose, effective doses accounts for the type of radiation used and
the type of body tissue being exposed.
What type of image receptor requires the least amount of
radiation to create a radiographic image? - ANSWER-Digital
receptor, digital sensors require the lowest amount of radiation,
and therefore the lowest dose to the patient. Hence the
recommendations to use digital sensors wherever possible.
What x-ray set variable affects the degree of blackening of the
radiographic image? - ANSWER-mA controls the quantity of x-ray
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photons in the beam. The more photons hit the image receptor,
the more blackening of the final image.
Why must we use a shield when the x-ray beam is pointed at the
patient's thyroid gland? - ANSWER-The thyroid gland is
particularly sensitive to radiation damage
What is the annual, recommended dose constraint for dental staff
involved in radiography? - ANSWER-0.3mSv
What type of radiograph does not have any geometrical
distortion? - ANSWER-All 2D radiographs have a degree of
geometrical distortion to them, no matter if they are digital or film.
The use of receptor holder and beam aiming devices helps
minimise geometrical distortion but does not completely eliminate
it.
What is an accurate description of a dental panoramic
radiograph? - ANSWER-a slice of the patient, showing the teeth
and jaws
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Under what circumstances can the Operator hold the x-ray
tubehead during the exposure? - ANSWER-Under no
circumstances
Which piece (or pieces) of radiographic equipment should you
routinely wipe down after every patient? - ANSWER-You should
wipe down every piece of equipment after every pt.
what should be autoclaved after use? A. panoramic chin supports
B. film packets C. film holders D. digital sensors - ANSWER-C.
film holders
What is an advantage of using the paralleling technique for
periapical radiographs? - ANSWER-Images are geometrically
accurate with minimal magnification
What is the recommended focus-to-skin distance when taking
paralleling technique radiographs? - ANSWER-200mm
BDA RADIOGRAPHY AND RADIOLOGY EXAM NEWEST 2026 ACTUAL
EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED A+|
||PROFESSOR VERIFIED||
What age group is most at risk of radiation induced cancer? -
ANSWER-0-20yrs old, cancer typically (but not exclusively) takes
time to develop. So, taking DNA damage at a young age leaves
more time to develop into something serious.
What do we normally mean when we say "dose" in relation to
medical and dental radiation exposures? - ANSWER-Effective
dose, effective doses accounts for the type of radiation used and
the type of body tissue being exposed.
What type of image receptor requires the least amount of
radiation to create a radiographic image? - ANSWER-Digital
receptor, digital sensors require the lowest amount of radiation,
and therefore the lowest dose to the patient. Hence the
recommendations to use digital sensors wherever possible.
What x-ray set variable affects the degree of blackening of the
radiographic image? - ANSWER-mA controls the quantity of x-ray
,2|Page
photons in the beam. The more photons hit the image receptor,
the more blackening of the final image.
Why must we use a shield when the x-ray beam is pointed at the
patient's thyroid gland? - ANSWER-The thyroid gland is
particularly sensitive to radiation damage
What is the annual, recommended dose constraint for dental staff
involved in radiography? - ANSWER-0.3mSv
What type of radiograph does not have any geometrical
distortion? - ANSWER-All 2D radiographs have a degree of
geometrical distortion to them, no matter if they are digital or film.
The use of receptor holder and beam aiming devices helps
minimise geometrical distortion but does not completely eliminate
it.
What is an accurate description of a dental panoramic
radiograph? - ANSWER-a slice of the patient, showing the teeth
and jaws
, 3|Page
Under what circumstances can the Operator hold the x-ray
tubehead during the exposure? - ANSWER-Under no
circumstances
Which piece (or pieces) of radiographic equipment should you
routinely wipe down after every patient? - ANSWER-You should
wipe down every piece of equipment after every pt.
what should be autoclaved after use? A. panoramic chin supports
B. film packets C. film holders D. digital sensors - ANSWER-C.
film holders
What is an advantage of using the paralleling technique for
periapical radiographs? - ANSWER-Images are geometrically
accurate with minimal magnification
What is the recommended focus-to-skin distance when taking
paralleling technique radiographs? - ANSWER-200mm
