10/22: Panoramic Imaging Principles Flashcards
what is the biggest indication for pano indication?
overal evaluation of dentition
what are advantages of Pano over FMX?
less radiation dose
quicker
easier
better for trimus patients
what are the disadvantages of Pano over FMX?
lower resolution
overlap of premolars
unequal magnification so measurements are not reliable
how does the pano rotation work?
start on right, behind head, end on left
the sensor is never where?
back of the patient
the tube is never where?
in front of patient
this is a 3-dimensional curved zone where structures are reasonably well-defined
focal trough
(T/F) there is 1 center of rotation
false
objects closer to the receptor will be
narrowed
objects closer to the source will be
wider
buccal objects will appear
lower
lingual objects will appear
higher
what is the beam angulation?
-4 degrees
why is the angulation -4?
avoid projection of occipital bone
are structures closer to the source projected higher or lower?
higher