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47 Cards in this Set
- Front
- Back
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No shield, have to take xray at what distance should you be
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6ft and 90 to 135 degrees
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If you're taking a periapical on a canine, what should be on the film?
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distal of canine and 1st & 2nd premolars
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you have xray film that you have taken at all different temps.(changes in temp solution, what happens)
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Reticulation which causes the swollen emulsion to shrink giving it a wrinkled appearance
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If you have a low or long scale, contrast is produced by
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Increased kvp
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When can a pregnant operator be around radiographs
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anytime as long as all safety precautions are followed
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mA milliampere (controls what)
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controls the number of xrays produced Quantity
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Paralleling directed beam
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Film is Perpendicular to long axis of tooth and central beam is perpendicular to film
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Ideal processing temp
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68 degrees
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Paralleling Max molars
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film needs to be midline of mouth so as not to bend, centered on 2nd molars
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Quality of the beam is determined by
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kVp
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Best way to greatly reduce radiation to patient is
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Film speed D,E,F
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Out of panaramic, extra oral or periapical, which is more sensitive to light
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Panaramic and extraoral
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Raised or Embossed dot on film, is it placed away from or towards PID
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Placed towards PID
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Major difference between solutions in Automatic and Manual Processor
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Automatic contains more hardener
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Radiograph biological damage, more damage in small or large exposure
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large exposure
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If you reduce developing time of solution, will it decrease or increase developing time
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Decrease, will take longer
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MAJOR cause of un-necessary exposure
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operator error
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What anatomical landmark helps to distinguish between Max and Mand on bisecting
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Sinuses
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raised dot out when looking at patient's left, it would be
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right to operator
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Developing young biological active cells are least susceptible to xrays
TRUE OR FALSE |
False
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What will result in a light radiograph image
(having to do w/developing solutions) |
oxidation (depeleting chemicals) , expired chemicals
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If badge shows exposure to radiation, what should be done?
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Check the unit and operator technique
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If everything stays and you have 48 impulse, will density increase or decrease
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Increase
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Greatest disadvantge to bisecting
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dimensional distortion
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Electrode Negative side
Electrically negative portion |
Cathode
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dose personnel receives
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REM/Sv
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Foreshortening caused by
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excessive angulation
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If using a barrier packed film, does it change anything like kVp, mA
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nope
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Bitewings are taken to detect
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caries
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Led backing on film is for what purpose
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reduce scatter radiation
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Size 1 film is used for
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anterior teeth, childeren, narrow mouthed people
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Potential dangers caused by ionization?
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duration quantity, shielding filtration, tissue being exposed
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what happens to film with an inadequate bad safe light
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Film Fog fogged film
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Brown films related to
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inadequate fixer
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Xray best penetrating
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Short
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How do you get excess developer off
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rinse w/water
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Manual Processing sequence
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developer,rinse,fixer,dry, wash
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Bitewings using parallel or bisecting?
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Parallel
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Degree of blackness
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Density
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Density of radiograph can be decreased by
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Tube to patient, the farther back the less dense
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Whay does sharpness have o do with
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detail and definition
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Aluminum filters in collumation
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low energy
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Penetrating power depends on
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level of kvp
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Increased Quantity
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more xrays are generated mA milliampere
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Collumation controls
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scatter radiation, and shape of film
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temp to high
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shorten
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Clear film results from
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excessive washing or fixing or an unexposed film
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