Radiology

Home

Get App

Create

what is something the pano is used to evaluate?

impacted teeth
what process does the pano use?

tomography
what is the theoretical concept where the dental arches are positioned to be seen clearly?

focal trough
what is the collimator for the pano?

narrow vertical slit
the vertical angulation of the pano is ____ and angled ____
- fixed
- upward
the tubehead rotates ____ the patient while the film rotates ____ of the patient
- behind
- infront
what factor for the pano cannot be changed?

exposure time
what causes a ghost image?

metallic objects are not removed
what causes a reverse smile?

chin tipped up
what causes the anterior teeth to appear skinny

teeth too far forward on biteblock
what is the disadvantage of the pano vs intraoral?

not as sharp because of the intensifying screens
what is an example of a specialty that most often uses extraoral radiography

oral surgery
what is the most common used extraoral radiograph?

pano
what is the fastest intesifying screen and what color does it emit?
- rare earth
- green
what is the device used to limit scatter radiation

grid
when would you use the lateral jaw radiography?

with a patient that has limited jaw opening
what extraoral radiograph would you take to see the impacted third molars?

ramus of mandible projection
what is the purpose of the transcranial projection?

to view the articular eminence and the superior aspect of the condyle
what are some qualities of the cone beam imaging?

they are digital and are all done with a computer
what is the benefit of the intensifying screen?

reduces exposure time

Author

sweetpea281

43208

Card Set

Radiology

Description

quiz 7

Updated

2010-10-20T23:48:20Z

Show Answers