Principles of Image Visualization Flashcards
1
Q
how do you get a black background?
A
lower ambient light
2
Q
intraoral films should be –
A
in a film mount (black background)
3
Q
view box must be –
A
uniformly illuminated
4
Q
purpose of view box
A
mask light at periphery of film
5
Q
differences in x-ray attenuation lead to –
A
differences in radiographic density
6
Q
low x-ray absorption appears
A
black
7
Q
high x-ray absorption appears
A
white
8
Q
low x-ray absorption
A
radiolucent
9
Q
high x-ray absorption
A
radioopaque
10
Q
x-ray absorption of soft tissue
A
low (radiolucent) black
11
Q
x-ray absorption of enamel
A
high (radiopaque) white
12
Q
what has a higher atomic number - enamel or soft tissue?
A
enamel
13
Q
contrast is –
A
relative
14
Q
radiographs are limited as they are –
A
2D images and superimpositions
