Ghost images are a product of what being left on a patient?
jewelry, hearing aids, thyroid collar.
What are the ABC's of a diagnostic bitewing
A=area distal of canine and third molar space
B= adequate bone levels, should be even for max and mand.
C= at least one open contact
Size 2, to capture 2mm beyond apex and crown
especially for canine
How many mm beyond the apex should you capture in PA?
2-3mm
What anatomy on a panoramic image should be perpendicular to the bottom on the film?
condyles
Bitewings are used to diagnose what 2 main things?
Caries and bone level
Vertical BW should be used with what type of sensor?
Size 2
What is the purpose of a periapical radiograph?
These x-rays are often used to detect any unusual changes in the root and surrounding bone structures
How do you avoid air-space on a panoramic image?
Patient must hold tongue to the roof of the mouth
If you cannot capture adequate bone levels with horizontal BW's what should you switch to?
Vertical
Lower anterior PA's should be taken with what size sensor?
Size 1
How many re-takes are students allowed in the radiology clinic?
2
5 in a FMX
If a patient is too far forward, what will be distorted?
maxillary and mandibular anterior
Double cusps on a bitewing is an example of what type of distortion?
Vertical angulation.
Posterior PA's should be taken with what size sensor?
Size 2
How many times can we take a PAN?
3