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M6W4

Radiation Basics

QuestionAnswer
What is a black region on an x-ray called? radiolucent
What is the imaginary plane that is from the bottom of the eye socket to the top of the ear? Frankfort plane.
What is vertical angulation? Angulation from top to bottom.
Where is intraoral film used? Inside the mouth.
What is a white or light region on the x-ray called? radiopaque
What is a pattern that results from placing the film backwards in the mouth called? Herringbone pattern
Where are the x-ray tube step-up and step-down transformers located? In the tube head.
Vertical angulation is left to right. T/F False, horizontal angulation is left to right
What is primary radiation also known as? The central beam.
A bitewing shows the entire area and surrounding surfaces. T/F False, a PA or periapical shows the entire tooth and surrounding surfaces.
What is overlapping a result of? Improper horizontal angulation.
What is it called when x-rays are processed in a manual tank? Manual processing
Double exposure is radiographs that are reproduced on specialized film. T/F False, duplicating is radiographs that are reproduced on specialized film.
What is a measurement unit for electrical current? mA or milliamperage
What is thermionic emission? The process of heating a current to allow electrons to be given off.
Double exposure is a technique error in which the film was exposed twice. T/F True, double exposure is a technique error in which the film was exposed twice.
The image of a tooth is shortened. Foreshortening
Is overlapping an area an anode that the electrons hit? No, the focal spot is the are on the anode that the electrons hit.
What makes the image of a tooth appear longer than it actually is? Elongation
What is cell division in the sex cells? Mitosis
What is the second chemical solution used to process radiographs? Fixer solution
Is the topographic technique used to diagnose TMJ disease? MRI, or magnetic resonance imaging is used to diagnose TMJ disease.
Leakage radiation is deflected from it's path as it strikes matter. T/F Flase, scatter radiation is deflected from it's path as it strikes matter.
What are wavelengths that have high frequency, penetrating power and energy? Short wavelengths have high frequency, penetrating power and energy.
What is automatic processing? Processing or developing x-rays using automated equipment.
Kodak Ultra Speed has the highest speed for the greatest reduction in radiation to the patient. T/F False Kodak insight has highest speed for the greatest reduction in radiation to the patient.
Hydroquinone blackens the silver halide crystals in the developer. T/F True, hydroquinone blackens the silver halide crystals in the developer.
Created by: ddriggers