Dental Radiography

What is intraoral film?
Film that is placed in the mouth.
Film that is in a cassette outside of the mouth
Film that is used to look at the teeth and surrounding structures
Used to look at large areas of the head or jaws.
What is a cassette in radiology?
The container that holds dental instruments.
It holds extraoral films during exposure.
A carriage to hold dental materials
None of the above.
How do positioning instruments protect the patient from unnecessary radiation?
It filters scatter radiation
It keeps the patient's hands and fingers from being exposed to x-radiation.
It speeds up the exposure time
It shows the correct teeth.
What size film is used for occlusal radiographs.
0
4
6
3
What size film would be used on a 2 year old patient?
2
4
0
1
What are the two types of extraorals cassettes?
Flexible
Rigid
Expandible
Aluminum
When would you need to duplicate radiographs?
For insurance purposes
For second opinions
To refer a patient to a specialist
To have an extra copy.
The image on the film before it is processed is called what?
Latent Image
Density
Mirror image
Invisible image
Where is the expiration date on a package of x-ray films.
On the outside of the box
On each film
On the bar code
On the package insert
What is the minimum distance between a safelight and the working area
1 foot
2 feet
3 feet
4 feet
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