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Dental Radiology Test 2 | 73 Questions and Answers with Verified Solutions ()
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Dental Radiology Test 2 | 73 Questions andAnswers with Verified Solutions (2024-2025)
What is the concept of radiation protection that states that all exposures should
be kept "as low as reasonably achievable? - ANSWER ALARA Concept
The positive electrode in the x-ray tube - ANSWER Anode
The negative electrode in the x-ray tube - ANSWER Cathode
X-rays at the center of the beam - ANSWER Central beam
The x-ray was discovered on November 8, 1895, by: - ANSWER Wilhem Conrad
Roentgen
The dentist who is credited with the first practical use of radiographs in dentistry
in 1896 is: - ANSWER C. Edmund Kells
Anything that occupies space and has a form or shape is: - ANSWER matter
In dentistry, the _____ the wavelengths of the x-rays are, the greater their energy
and their usefulness will be. - ANSWER shorter
Which component of the x-ray machine functions in positioning the tubehead? -
ANSWER Extension arm
, A minute bundle of pure energy that has no weight or mass is: - ANSWER A
photon
The control panel contains the master switch, an indicator light, selector buttons,
and _____. - ANSWER an exposure button
The heart of the x-ray generating system is the: - ANSWER X-ray tube
What is the term that refers to x-radiation that is created when the primary beam
interacts with matter? - ANSWER Secondary radiation
What part of the x-ray machine aims the central ray? - ANSWER PID
The term _____ is used to describe areas that appear dark on the radiograph;
_____ is the term used to describe areas that appear white or light gray. -
ANSWER radiolucent; radiopaque
The range of shades of gray between black and white on a radiograph is called: -
ANSWER contrast
The degree of density or blackness on a radiograph is controlled by: - ANSWER
the milliampere seconds
The sharpness of an image is influenced by what three things? - ANSWER 1.
Focal spot size
2. Film composition
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