Intraoral Radiographic Technique Errors Flashcards
No x-rays reaching the receptor
Unexposed
What are the Receptor exposure errors seen in CMOS and CCD receptors?
Unexposed
Underexposed
Overexposed
Too many xrays reaching the receptor
Overexposed
Low count of xrays reaching the receptor
Underexposed
What are the receptor exposure seen in PSP plates?
Fading on PSP
Non-uniform image density
Double exposure
Ambient light exposure of the unsheathed plate -> releasing electrons that form the latent image -> lighter image
Fading on PSP
Two or more areas of the image exhibit different densities because of partial light exposure (overlapped unsheathed plates)
Non-uniform image density
Occurs when a plate is used twice without scanning the images
Double Exposure
The teeth look shorter than their real size
Foreshortening
The teeth look longer than their acual size
Elongation
X-ray is perpendicular to the image receptor but the object is not parallel with the image receptor
Foreshortening
Central ray is perpendicular to the tooth but not to the image receptor
Elongation
If the correct horizontal angulation occurs, how will the contacts be affected?
Open contacts
If the incorrect horizontal angulation occurs, how will the contacts be affected?
Overlapping contacts
If the overlap is increasing from PM to molars, therefore the tube is too far to the _____
Mesial
