Dental Radiology Practice Test Questions with Correct Answers
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Course
Dental Radiology
Institution
Dental Radiology
Dental Radiology Practice Test Questions with Correct Answers
Dental Radiography - Answer-the production of radiographs of the teeth and adjacent structures by the exposure of an image recerptor to x-rays
Dental Radiographer - Answer-any person who positions, exposes, and processes dental x-ray...
Dental Radiology Practice Test Questions
with Correct Answers
Dental Radiography - Answer-the production of radiographs of the teeth and adjacent
structures by the exposure of an image recerptor to x-rays
Dental Radiographer - Answer-any person who positions, exposes, and processes
dental x-ray image receptors
Collimator - Answer-lead plate with a center hole that fits direcctly over the opening of
the metal housing where x-rays exit
X-ray Tube - Answer-heart of the x-ray generating system
Tube Head - Answer-the tightly sealed heavy metal housing that contains the dental x-
ray tube (holds the tube)
Tungsten Target - Answer-focal spot that converts election into photons or x-rays form
(medal used for target)
Tungsten Filament - Answer-coils of tungsten that produces electrons when heated
Oil - Answer-surrounds x-ray tube and transformers (heat created during x-rays)
Unleaded Glass Window - Answer-a leaded-glass vacuum tube that prevents x-rays
from escaping in all directions (x-rays exit)
Aluminum Filters - Answer-placed in the path of the x-ray beam
PID (Cone) - Answer-open end lead line cylinder, retangular in shapes and sizes (16
long)
Copper Stem - Answer-dissipates heat away from tungsten target
Tube Head Seal (Aluminum) - Answer-permits exit of x-rays from the tube head (seals
the oil)
Molybdenum Cup - Answer-focus electrons into a narrow beam and directs that beam
across the tube toward the tungsten taget of the anode
Vacuum - Answer-where you remove air
Cathode - Answer-negative electrade or charge (-) in a x-ray also contains the copper
stem and the target
, Anode - Answer-positive eletrade or charge (+) in a x-ray also contains the filement and
the focusing cup
Extension Arm - Answer-x-ray tube head
Control Panel - Answer-master on/off switch, indicator light and selector buttons
Doctor - Answer-only can prescribe radiographs
Eastman Kodak Comany - Answer-company produced the first pre-wrapped intraoral
film
Dentist - Answer-owns radiographs taken in the office
Velocity - Answer-speed of a wave
Frequency - Answer-number of wavelenths that pass a given point in a certain amount
of time and indicates the energy of a radiation
Photon - Answer-a bundle of energy with no mass or weight that travels as a wave at
the speed of light and moves through space in a straight line
Wavelength - Answer-the distance between the crest of one wave to the crest of the
next wave and determines the energy and penetration power of the radiation
Transformer - Answer-changes the current comeing into the x-ray machine
Scatter Radiation - Answer-radiation that has been deflected from its path by the
interation with matter
Primary Radiation - Answer-radiation that exits the tubehead
Breaking Radiation - Answer-radiation produced when an electron hits or comes close
to the nucleus of a tungsten atom
Coherent Scatter - Answer-radiation produced when a low energy photon interacts with
an out-shell electron
Compton Scatter - Answer-radiation produced when a photon collides with a loosely
bound, outer-shell electron and gives up part of its energy to eject the electron from its
orbit
Characteristic Radiation - Answer-radiation produced when a high-speed electron
dislodges an inner-shell electron from the tungsten atom and cause ionization of that
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