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dental x-rays


Primary Radiation? Is the central beam that comes from the x-ray tubehead. It consists of high energy, short wave length x-rays traveling in a straight line.
What is the use of x-rays? X-ray is used to examine components of the teeth and surround tissues that cannot be viewed in any other way.
ALARA? As low as reasonably achievable.
Inherent filter function? function is to screen out most of the longer and less useful wave lengths of radiation.
Central beam function? Is used to expose the x-ray film.
Position-Indicator device function? To guide and limit the amount of radiation
Target film disstance (TFD) definition Is the distance from the source of the x-ray to the object being radiographed.
Dental x-ray units usually operate in the range of what? 7.5,10 to 15 mA
Kilovoltage function used to determine the quality of the central beam.
Radiolucent definition? describe less dense tissues and materials that do permit the x-ray to pass through onto the dental film.
Radiopaque tissue definition? dense structures that do not permit the passage of x-ray through them onto the film.
collimator function? reduce the size of the x-ray beam and to reduce the amount of radiation to the patient.
secondary Radiation? forms when primary x-rays strike the patient or contact matter.
Created by: sonya12 on 2012-03-04

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