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25 Cards in this Set
- Front
- Back
- 3rd side (hint)
What appears most radiopaque on a x-ray?
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enamel
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X rays are used to do what to the tissue?
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destroy
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If the darkroom has a light leak, how will the film appear after it has been developed?
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dark
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Otto Walkoff
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1st dental radiograph
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Ciezynski
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discovered bisecting angle technique
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dont like his name and dont like what he discovered
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W.D. Collidge
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invented vacuum tube
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C. Edmund Kells
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american pioneer in dental radiography; hired first dental assistant
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W.K. Roentgen
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discovered x-rays
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Explain where leakage radiation comes from
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all radiation coming from teh tube housing except the useful beam
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What does the periapical xray detect?
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entire anatomy of the tooth
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Explain what density is
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referring to the blakening of the film
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What is a RAD of radiation
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unit of absored radiation
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What appears most radiolucent on a X-ray Film
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periodontal membrane
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What does the bite/wing x-ray detect
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carries inbetween teh teeth ( inter proximal)
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is the panoramic film used intraoral or extraoral
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extraoral
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What is a Curie
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unit of radioactivity
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What is used as a aid in mounting a X-ray film?
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raised dots
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What is the purpose of the collimator in the x-ray machine?
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reduces the size of x-ray beam to 2/3 inches
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Explain the error of foreshortening
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vertical angle is too high
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How does cumulative radiation effect the body?
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kills gonadal cells reproduction cells each does is added to the previous dose
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What does occlusal xray film detect?
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upper/lower arch on one film
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explain the error of elongation
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vertical angle of cone is placed too low
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when the xray machines are installed in adjacent rooms, how far between these rooms must the barriers be placed?
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6
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explain the error of overlapping
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central rays are not directed through contact points incorrect horizontal angle
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What is the contrast of a dental xray
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the difference between black and white on the x ray film
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