REVIEW)
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Exam 2026
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2026
, Dental Radiology (BOARD REVIEW)
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1. Which radiology innovator is known Willhelm Roentgen
as the father of the science of radi-
ation protection?
2. What is the source of electrons used Tungsten filament
for x-ray production?
3. Where does the generation of xrays Tungsten target
in the xray tube actually occur?
4. Which theory best describes the Indirect theory
free radical formation that is so in-
jurious to living tissue?
5. What unit of radiation represents Gray
the amount of radiation energy ab-
sorbed by the tissue?
6. What factor is most important Limited area exposure
when considering the biologic ef-
fects of radiation used in dentistry?
7. Which cell type is the most sensitive Immature cells
to radiation?
8. What reduces operator exposure to Distance
radiation?
9. Which radiographic technique has Paralleling
less distortion and magnification
and creates a more accurate image
on film?
10. Collimation
2026
, Dental Radiology (BOARD REVIEW)
Study online at https://quizlet.com/_5hecxb
What is used to restrict the size of
the xray beam?
11. If the source-to-film distance is 1/9th as intense
changed from 8 to 24 inches, the
intensity of the beam becomes
__________.
12. The greatest cause of human radi- Free radicals of water
ation effects in dental radiography
involve _________.
13. Cell sensitivity to radiation is most During mitosis, periods of increased metabolism and
pronounced when? during embryonic development
14. How many impulses equal a 1/4 sec- 15
ond exposure time?
15. As you go from a "D-speed" film Halved
to an "E-speed" film, the expo-
sure time should be approximately
________.
16. The mA setting controls what? Heat of the tube filament
Number of free electrons in the tube
number of photons ultimately produced
The density of the film
17. A bite wing film is exposed prop- 4 seconds
erly using an exposure setting of
1 second with the xray source 8 in
from the patient. What time would
2026