ch 25 dental radiography Flashcards
t/f; sensors replace intraoral film
true
x-radiation-silver halide in film emulsion-latent image-chemical processing-visible image
traditional
x-radiation-electronic charge on sensor-digitized -computer screen
digital
sensors are most sensitive to x-radiation than films, therefore
exposure is much less to the pt
uses an xray machine, intramural sensor and computer monitor with imaging software
direct digital imaging
t/f; silicon chip is sensitive to x-radiation or light
true
a solid state detector that contains a silicon chip with an electronic circuit embedded in it
CCD charged couple device
Detector is silicon based and differs from the ccd in the way the pixels are read
CMOS complimentary metal oxide semiconductor
t/f; CMOS sensor is better than CCD and claims that it has 25% greater resolution
true
uses an xray machine, pop plate , a scanner and computer monitor with imaging software
indirect digital imaging
referred to photo stimulable phosphor imaging , utilizes a reusable imaging plate coated with phosphors instead of a sensor with a fiberoptic cable
storage phosphor imaging
t/f; phosphor coated plate is flexible and is placed into the mouth in the same way as intraoral film
true
t/f; sensors are thinner than xray film and more comfortable for the pt. These sensors are most flexible
true
disadvantage / advantage of CCD AND CMOS
useful for endo emergenices
sensor is very thick and can be difficult to place
disadvantage/advantage of PSP system
scanning of sensors takes several mins
sensors are thinner and more comfortable for the pt
