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20 Cards in this Set

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  • Back
Adhesive layer
A thin layer of adhesive material that covers both sides of the receptor base and attaches the emulsion to the base
A light-tight device used in extraoral radiography to hold the film and intensifying sreens
Film, bite-wing
Film used to examine the crowns of both maxillary and mandibular teeth on one surface
Film Base
A flexible piece of plastic that is constructed to withstand heat, mositure, and chemical exposure and provides stregth and stable support for the film emulsion
Protective Layer
One of the four basic components of x-ray film; a thin, protective coating on top of the emulsion that protects the film from manipulation and mechanical and processing damage
Film Emulsion
A coating attached to both sides of the film base by the adhesive layer to give the film greater sensitivity to x-radiation; homogenous mixture of gelatin and silver halide crystals
A component of the film emupsion that suspends and disperses silver halide cyrstals over the film base
Film, extraoral
Outside of the mouth film
Film, F-speed
The fastest intraoral film available, the F identifies the film speed, also called InSight
Halide Crystals
A chemical compound that is sensitive to radiation or light; in dental radiography a halide such as silver bromide is suspended in the gelatin of the emulsion
Protective Layer
Thin, transparent coating placed over the emulsion. It serves to protect the emulsion surface from manipulation as well as mechanical and processing damage.
Latent Image Formation
The stored energy within the silver halide crystals forms a pattern and creates an invisible within the emulsion on the exposed film.

The latent image is the pattern of stored energy on the exposed film that cannot be seen.
Periapical Film (PA) xray
Encompasses the whole tooth including apices, the crown is not critical
Bite-Wing xray
What is going on with top and bottom at both times, only see the crowns
Occlusal xray
Shows us the whole arch
Explain how the composition of film can be compared to getting your nails done.
The film base is the fingernail. The adhesive layer would be the base coat. The film emulsion would be the color. (Unlike nails, the ashesive layer and film emulsion are on both sides of the nail). The protective layer is the top coat.

Halide crystals are part of the film emulsion. They are like bananas in the gelatin.
Explain different film sizes and orientations.
All film can be used horizontally or vertically depending on what you want to see. There are three sizes: 0, 1, 2.

0 is the smallest.
1 is often used for anterior xrays.
2 is the biggest and usually used for posterior xrays.
Film empulsion components
Gelatin and halide crystals
used to suspend and evenly disperse millions of microscopic silver halide crystals over the film base. During processing, gelatin absorbs the processing solutions and allows the chemicals to react with the silver halide crystals.
chemical component that is sensitive to light and radiation.

Silver halide absorbs and stores radiation energy from an x-ray.