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Fall 2009- Radiology Test 4
chapter 22
18
Health Care
Professional
11/01/2008

Additional Health Care Flashcards

 


 

Cards

Term
Describe the purpose and uses of panoramic radiography
Definition
Is an extraoral radiographic technique that is used to examine the upper and lower jaws on a single film showing large gross anatomy such as cysts tumors ect
Term

What are the fundamentals of panoramic radiography?

Definition
  •  
    • the panoramic film rotates around the patient well the head rotates in the opposite direction
    • the patient stands while the pano moves around them

  

Term
describe the equipment used in panos
Definition
  1. panoramic x-ray unit
  2. screen film
  3. intensifying screen
  4. cassette
Term
Describe patient preparation, positioning, and equipment
Definition
see handout
Term
Frankfort plane
Definition
imaginary plane that psses through the top of the ear canal and the bottom of the eye socket
Term
Focal trough
Definition
a three-dimensional curved zone in which structures are clearly demonstrated on a pano
Term
Ghost images
Definition
Term
lead apron artifact
Definition
Term
Lip and tongue positioning errors
Definition
radiolucent shadow will be superimposed over the apices of the maxillary teeth
Term
Positioning of frankfort plane upward/downwards
Definition
  1. less detail in the maxillary incisor region
  2. maxillary incisor appear blurred and magnified
  3. "reverse smile line"

 

  1. mand. incisor appears blurred
  2. loss of detail in ant apical regions
  3. mandibular condyles may not be visible
  4. "pumpkin smile"
Term
Describe the result of teeth too far into the trough
Definition
Skinny anterior teeth
Term
Bite to far out of the trough
Definition
"fat" anterior teeth
Term

Describe the best use for pano's

Definition
impacted 3rd molars
Term
Why is rare earth recommended on intensifying screens?
Definition
requires less x-rays lowering pt exposure
Term
Why are thyroid collars to recommending for pt having a pano taken
Definition
blocks x-ray beam
Term
the imaginary line that passes from the bottom of the eye socket through the top of the ear canal is termed the
Definition
frankfort plane
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