Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
When would we use extraoral films?
|
locating tumors, locating impacted wisdom teeth, orthodontics
|
|
|
How many mm of lead does the lead apron contain
|
.25 mm
|
|
|
What area of the eye is most sensitive to radiation?
|
lens
|
|
|
What is the function o the lead diaphragm
|
resstricts size of x ray beams
|
|
|
What type of waves in electromagnetic radiation have the longest wavelength?
|
electric waves
|
|
|
What is the first clinical sign of over exposure to radiation called?
|
erythema and redness of skin
|
|
|
What is the function of aluminum filter?
|
Eliminate long less penetrating rays
|
|
|
What type of rays in electromagnetic radiation have the shortest wavelength?
|
gamma rays
|
|
|
List the inherent properties of dental film
|
detail, definition, contrast, density
|
|
|
What is the occupational dose of radiation forr those under 18
|
10 percent of an adult dose
|
|
|
list 6 items that may affect dental films
|
light, heat, moisture, chemical elements, aromatic substances, time
|
|
|
Within the anode is the target, what is this made up of?
|
tungsten
|
|
|
List the reason for cone cutting on a xray
|
misdirection of the xray beam
|
|
|
If we have a radiation leak from our machine what must we do?
|
withdraw from using the machine
|
|
|
What do the various types of radiation differ in?
|
wave lengths
|
|
|
What is the name of the light proof frame that holds large film
|
cassette
|
|
|
In a 13 week period what is the permissible dose of radiation we may recieve
|
3 rem
|
|
|
What is the slowest speed of film availible today?
|
D
|
|
|
Explain what is the purpose of the aluminum filter
|
reduce secondary radiation
|
|
|
What is the cause of overlapping when we take a xray
|
incorrect horizontal angle
|
|
|
How do we store xray film
|
according to date on package
|
|
|
If your xray machine is stolen how do we report it
|
by phone and letter
|
|
|
What speed film should we use that will give minimal exposure to the patient
|
E
|
|
|
The developing solution not exceed what temperature?
|
75 degrees
|
|
|
What is the advantage of using fast film
|
less exposure to radiation
better patient protection |
