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Ch 39
dental film and processing radiographs
| Question | Answer |
|---|---|
| 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
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