10/15: Occlusal Radiology Flashcards
maxilla cross section
max cross-section
max cross-section
max lateral cross
max top
max top
max top
mand cross
mand lateral
mand lateral
mand top
lateral cephalogram
lateral cephalometric
PA skull
waters’ skull
submentovertex
What are the film PSPP sizes?
0
1
2
4
What happens if you expose a PSP to light and then take an X-ray?
X-ray will turn out darker
What are the indications/advantages to using Occlusal radiographs?
Hard to open jaw
Larger segments of jaw to be examined
What are the types of occlusal radiographs?
Cross-section
Lateral cross-section
Anterior topographical
When taking a cross-section of the maxilla, what should you have?
65-70 degree
Bridge of nose
When taking a lateral cross-section of the maxilla, what should you have?
55-60 degree
Posterior maxilla
When taking the anterior topographical of the maxilla, what should you have?
55-60 degree
¼ to ½ in above tip of nose
When taking a cross-sectional of the mand, what should you have?
Perpendicular to plate
Between mand molars
What should the occlusal exposure settings be?
1 or 2 settings higher than PA maxillary
What should you do for pediatric occlusal radiographs?
Same protocol
Use size 2
This is use as an image enhancer to reduce amount of radiation scatter in skull radiographs
Grid
This is when you are facing sideways against the grid
Lateral cephalogram
What is the difference between a cephalogram and a cephalometric radiograph?
Cephalometric = soft tissues
It is a fixed distance
This is used for taking measurements and evaluating the effect of growth or disease on a skeletal profile
Lateral cephalometric radiograph
What is the standard focal distance for lateral cephalometric?
60 in
This is best used for orthodontic and orthognathic surgical treatment
Lateral cephalometric radiograph
This is a posterior to anterior skull radiograph. Facing the grid
PA Skull
Can you see the sphenoid sinus in the PA skull?
No
This is when you’re facing the grid with your chin up
Water (occipitomental) skull
This is when you’re facing towards the beam with your chin up
Submentovertex skull radiograph
