digital imagining, dental film & processjng radiographs Flashcards
automatic processor
-automates all film processing steps
beam alignment device
-assist in positions of the PID in relation to tooth and film or sensor
bitewing
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calcium tungstate
-A common type of phosphor which produces a blue light
cassette
-plastic or metal case that is used to hold the film and protect it from exposure to light also holds the film in tight contact with the intensifying screen
cephalometric film
-shows the bony and soft tissue areas of the facial profile
charge-coupled device (CCD) DIGITAL IMAGING
-most commonly used digital receptor
used in telescopes fax video camera
has a cable connected directly from the sensor to the computer
use radio frequency transmission to instantly transmit the image to the computer via image waves
digital image/radiograph
-electronic signals captured by sensors and displayed on a computer screen almost ASAP
(what we email out)
digitized
desktop scanner captures the light of signal off whatever’s placed inside them
duplicating film
used only in a dark room setting it is never exposed to x-rays
sensitive to light and has emulsion on one side only
extraoral film
-placed outside the mouth during x-ray exposure used to examen large areas of head or draw including panoramic or cephalometric films
film speed
-The amount of radiation that is required to produce a radiograph of standard density (darkness )
determines how much exposure time is required to produce the image on the film
intensifying screen
-A device that intensifies or increases the effect of radiation in those decreases the amount of exposure time needed
intraoral film
-semi-flexible acetate film base that is coated on both sides with an emulation of silver bromide, silver halide, and silver iodide that is sensitive to radiation
film placed inside the mouth used to exam in the teeth in supporting structures
label side
-The side that has a flap that is used to open the film packet before processing. The label side is the color-coded side that is used to identify films
latent image
-The invisible image that is produced when radiation interacts with the silver Halide crystals in the film emulsion
occlusal
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panoramic film
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periapical
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phosphor storage plates (PSPs)
-image receptor is a thin flexible plate, size of x-ray film, coated with phosphor crystals
phosphor layer is able to store the energy of the x-ray photons for a lil
a scanner “reads” the info stored on plate using laser beam to release the energy from plate into digital image
latent image remains in phosphor plate before scanning for minutes to hours depending on environment
do not store in bright light or warmth - releases energy
BARRIER ENVELOPE
positioning device/positioning instrument (dental film & sensor holders)
-used to position & hold x-ray films or digital sensor in patients mouth
processing
-A series of steps that change the latent image on the exposed film into a radiograph by producing a visible image on the film
teledentristy
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tube side
-Solid why has the raised bumps on one corner. when placed in the mouth the white side of the film faces towards the teeth and tube head and the raised dot points toward the incision/occlusion surface
-direct digital
solid slate sensor is is the image receptor
CCD sensor used
