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Rad ch 25

Terms in this set (23)

sensor
a detector that is used to capture the dental image
charge-coupled device (CCD)
an image receptor found in intraoral sensor
Storage phosphor imaging
a form of indirect digital imaging in which the image isrecorded on phosphor coated plates and then plaed i an electronic processor, where a laser scans the plate and produces an image on a computer screen
digitize
to convert an image into digital form that oin turn can be processed bya computer
direct digital imaging
a method of obtaining a digital image in which an intraoral sensor is exposed is exposed to xrays to capture an image that can be viewed on a computer monitor
pixel
a discrete unit of information, a picture element
digital subtraction
a method of reversing the gray scale as a digital image is viewed
digital radiography
a filmless imaging system, a method of capturing an imge using a sensor, breaking the image into electronic pieves, and presenting and storing the image using a computer
In digital imaging, the term used to describe the picture that is produced is radiograph.
True
False
F
Digital imaging requires more x-radiation than conventional radiography.
True
False
f
The x-radiation source used in most digital imaging systems is a conventional dental x-ray unit.
True
False
t
Compared with film emulsion, the pixels used in digital imaging are structured in an orderly arrangement.
true
False
t
All intraoral sensors can be heat-sterilized after use.
False
True
false
The preferred exposure method for intraoral digital imaging is the paralleling technique.
True
False
t
One advantage of a digital imaging system is the superior gray-scale resolution that results.
True
False
t
Digital subtraction is an advantage in digital imaging because distracting background information is eliminated from the image.
True
False
t
The manipulation of the original digital images can be considered a legal issue.
True
False
t
Digital imaging was introduced to dentistry in
1987
1967
1977
1997
1987
Digital imaging can be used for:
All are correct.
detecting conditions of teeth and surrounding structures
evaluating the growth and development of jaws
confirmation of suspected disease
all are correct
Digital imaging requires less radiation than does conventional radiography because:
the sensor is more sensitive to x-rays
the sensor is larger
the exposure time is increased
the pixels sense transmitted light quickly
the sensor is more sensitive to x-rays
The image receptor found in the intraoral sensor is termed:
CCD
pixel
Semiconductor chip
software
CCD
Digital imaging systems can be used for which images?
All are correct.
Bite-wing
panoramic
chephalometric
all are correct
All of the following are advantages of digital imaging EXCEPT:
size of the intraoral sensor
digital subtraction
the ability to enhance the image
patient education
size of the intraoral sensor
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