Term
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Definition
| The study or science of ionizing radiation in diagnosis and treatment of disease. |
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| Radiology is divided into tow large groups |
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Definition
| Diagnostic radiology and therapeutic radiology |
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Term
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Definition
| Whats wrong. use this 100% of time |
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Definition
| fix what is wrong. ex: cancer |
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Term
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Definition
| the use of radiation to produce and image on a film or viewing screen |
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Definition
The image produced on photosensitive film (or on a digital imaging screen) after exposure to x-rays.
(Cant see and x-ray; what you see is a radiograph) |
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Term
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Definition
They type of radiation energy needed to form and image on x-ray film.
(Not what we call the image) |
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Term
| X-rays do wat with the object being imaged |
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Definition
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Term
| Over exposure effect in photography turns the image... |
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Definition
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Term
| Over exposure effect in radiography turns the image |
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Definition
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Term
| Comparison to photography |
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Definition
-Photography uses light rays bouncing off an object to expose sensitive film to crate and image.
-Radiography uses X-rays to produce the image on very sensitive film or viewing medium |
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Term
| Types of radiology techniques |
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Definition
-Intraoral
-extraoral
where the film/sensor is placed.. inside or out
In all cases, the terms "film" and "sensor" can be interchanged |
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Term
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Definition
-periapical
-bitewing
-occlusal
98% intraoral
Each of these provide specific (and unique) information.. they can't be interchanged. |
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Term
| Periapical (Looking for decay) |
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Definition
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Term
| Bitewings ( Looking for decay) |
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Definition
| crowns of teeth, crest of bone |
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Term
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Definition
-horizontal- standard for dentistry
-Vertical - used in periodontics (boneless) |
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Term
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Definition
images of entire arch
(rare, large film, tumor |
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Term
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Definition
-Film/sensor placed outside of the patients head.
-film and source on opposite sides of head.
-objects of interest shown on film image but less detail. |
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Term
| types of extra oral radiographs |
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Definition
| there are several but panoramic and cephalometric films are by far the most commonly used. |
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Definition
| most used in gen practice |
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Term
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Definition
| used for pediatric; oriental and oral surgery |
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Term
| Discovered x-rays in 1895 |
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Definition
W.H. Roentgen
First radiograph image was of a hand
they were called "x" rays after the mathematical symbol "x" for unknown
They thought it was a toy |
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Term
| First person to have an x- ray machine |
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Definition
| Dr. Edmund Kells, New Orleans |
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Term
| Electormagnetic waves (also known as electromagnetic radiations) are grouped according to |
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Definition
| wavelength in the electromagnetic spectrum |
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Term
| Electromagnetic waves have no |
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Definition
| mass or electrical charge, and travel in a wave motion at the speed of light. |
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Term
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Definition
| higher energy, and higher frequencies |
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Term
| Strongest on the electromagnetic spectrum |
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Definition
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Term
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Definition
The propagation of energy through space or some material
some types of radiation are wrong enough to produce ions
some are low
x-rays can go through a wall |
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Term
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Definition
-photons (weightless bundles of energy
-variable wavelengths/ energy
-specific area of the electromagnetic spectrum
-invisible
-fast (traveling at the speed of light) Both weak and strong |
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Term
| Some Properties of X-rays |
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Definition
1) Invisible, highly penetrating electromagnetic waves traveling at the speed of light
2) Neutral charge (can't be deflected by electrical or magnetic field)
3)Radiate from source in straight lines when they are produced
4)They can produce chemical and biological changes in cells |
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Term
| Only three things may happen when an x-ray photon arches an object (tooth) |
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Definition
1) X-rays can pass completely through the object without loss of energy.
2) X-rays can be absorbed completely by the object.
3)the object can cause X-rays to be deflected in a new direction. |
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