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dental x-rays
x-rays
Question | Answer |
---|---|
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. |