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Ch 39

dental film and processing radiographs

QuestionAnswer
device that automates all film processing steps automatic processor
assists in the positioning of the position indicator device ( PID ) beam alignment device
radiographic view that shows the crown of both arches on one film bitewing
common type of phosphor calcium tunstate
holder for extraoral films during exposure cassette
shows the bony and soft tissue areas of the facial profile cephalometric film
film designed for use in film duplicating machines duplicating film
a coating on the x-ray film that contains energy sensitive crystals emulsion
film designed for use in cassettes extraoral film
device used to position and hold dental x-ray films film holder
the sensitivity of teh emulsion on the film to radiation film speed
device used to covert x-ray energy into visible light, which in turn exposes screen film intensifying screen
film designed for placement in the patients mouth intraoral film
colored side of the film that faces the tongue label side
the invisible image on the x-ray film after exposure but before processing latent image
radiographic view that shows large areas of the maxilla or mandible occlusal
provides a wide view of the upper and lower jaws panoramic film
radiographic view that shows the crown periapical
a series of steps that change exposed film into a radiograph. The steps include developing, rinsing, fixing, washing and drying processing
image produced on photosensitive film by exposing the film to radiation then processing it radiograph
solid white side of the film that faces the x-ray tube tube side
EeZee-Grip was formerly called the ______. Snap-A-Ray
The emulsion on the intaoral film consist of three things. Silver bromide, silver, halide, and silver iodide.
The film speed is classified by what organization? American National Standards Institute. (ANSI)
What is the fastest speed available? F speed
What are the three types of x-ray film that are used in dental radiography? Intraoral, extaoral, and duplicating.
The small raised bump on the film packet is known as __________. The identification dot.
The thin lead foil sheet is positioned ______ the film. behind
What happens if you place the film packet in the mouth backwards? a herringbone pattern will be visible on the radiograph.
The lead foil is considered a _________and may not be disposed of with the regular trash. Hazardous waste
The raised dot points towards what surface of the tooth. Incisal/occlusal
What type of film is used to examine large areas of the head or jaws? Extraoral film.
What are two common extraoral films? panoramic and cephalometric
The back side of the cassette is made of metal to ___________. reduce scatter radiation.
The intensifying screen is coated with what material? phosphor
What type of film is used with cassettes that have calcium tungstate intensifying screens? Blue sensitive
Duplicating film is used only in a _______ setting. darkroom
The effect that happens if you use film that is outdated. Age fog
What is the first step in film processing? Developer
What happens if the the film is left in the fixer for long periods of time? removes the image from the film
What happens if the film is not properly fixed? The film will fade and turn brown.
What are three forms of processing solution? powder, ready to use liquid, and liquid concentrate.
How often should the chemicals in the processor be replaced? Every 3 to 4 weeks
What is a safelight? low-intensity light in the red-orange spectrum.
How far away from film and work area must a safelight be placed? at least 4 feet
Processing solution in the automatic processor should be replaced every _______. 2-6 weeks
Overdeveloped film will appear _____. Dark
A white line on the film will indicate the film has been ______ before developing. scratched
Created by: cynthia.fryer on 2011-11-30



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