9/3: Sensors & Digital Imaging Flashcards
1
Q
- How many dental offices use digital radiography?
A
90%
2
Q
- What are the different intraoral film sizes?
A
a. 0
b. 1
c. 2
d. 4
3
Q
- Is there a size 3 intraoral film?
A
a. No
4
Q
- What intraoral film sizes do what?
A
a. Size 0,1,2 = PA or BW
b. Size 4 = Occlusal
5
Q
- Size 0 is for
A
a. Pediatric
6
Q
- Size 1 is for
A
a. PA, pediatric
7
Q
- Size 2 is for
A
a. Standard
8
Q
- What is the composition for film?
A
a. Supercoat = thin layer of hard plastic
b. Emulsion
c. Adhesive
d. Base
9
Q
- Emulsion is comprised of
A
a. Gel and Ag = halide crystal
10
Q
- The base of the film is comprised of
A
a. Plastic
11
Q
- In film processing, the chemicals used to form elemental Ag are from
A
a. Silver halide salt
12
Q
- Chemical changes are what dependent?
A
a. Time
b. Temperature
c. Concentration
13
Q
- Film has to be _____ processed
A
a. Manually
14
Q
- What x-ray technique needs to be replenished when chemicals get diluted?
A
a. Film
15
Q
- This is a table with columns and rows that are assigned a number value for each pixel that determines a gray intensity
A
a. Digital film
16
Q
- Pixel is derived from the words
A
a. PEL (picture element)
17
Q
- Pixels are
A
a. Electrified
17
Q
- This is the smallest portion of a sensor, image, or display that is capable of being recorded and then printed/displayed
A
a. Pixel
18
Q
- Does each pixel have a pre-exposure electrical charge?
A
Yes
19
Q
- What do x-ray photons do to the pixels?
A
a. Change their electrical charge