Dental Radiology Terms: 1
About this set
Created by:
britt2189 on June 21, 2010
Subjects:
dental assistant, radiology, radiography
Classes:
BIO201DA, Raymond Walters Dental Hygiene '12
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23 terms
Terms | Definitions |
|---|---|
 ALARA | "As Low As Reasonably Achievable." |
| Collimator | helps eliminate peripheral radiation |
| Dosimeter | a device that measures cumulative radiation |
| Primary Beam | the main flow of x-rays from the x-ray machine |
| Primary Radiation | The rays coming from the primary beam |
| Scatter Radiation | Rays deflected from exposed tissue to adjacent tissues, or rays deflected within the tube head. |
| rem | a unit of radiation exposure. "biological dose." |
| What is the purpose of dental x-rays? | To Diagnose |
| What causes the dark area on the developed film? | x-ray striking the film |
| What does the mA setting control? | The quantity of x-rays |
| What does the kVp setting control? | The wavelength and penetrating power of the x-rays. |
| developer | the solution that reacts with the film emulsion to produce a visible image |
| emulsion | the thin coating on the sides of the x-ray |
| fixer | solution that dissolves away silver bromide crystals in order to stop the film from being sensitive to light |
| silver bromide | a substance suspended in the emulsion of x-ray film |
| What is the normal temperature of the processing solutions? | 68 degrees F |
| How long is the finishing rinse in manual processing? | 20 minutes |
| The automatic processor feeds the film through which stages of processing? | developer, fixer, rinse |
| How often should the solutions be changed in manual processing? | once every two weeks, or more. |
| bite-wings | shows the crowns of the upper and lower posterior teeth |
| contrast | the difference in density between adjacent areas of an image |
| density | the blackness of an image |
| elongation | an error in vertical angulation |
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