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with size 2 film ____ anterior film placements are used with paralleling
what is being tested in a calibration test for kVp and mA?
what is a film screen contact test for?
cassette holder for extraoral films
if the coin appears on the film after being processed what does that mean?
the safelight is not safe
what are the results of the automatic processing test if everything is working right?
unexposed film will be clear and dry
film exposed to light will be black and dry
a reference radiograph is compared with daily radiographs to match what?
when doing a clearing test for the fixer it will clear the film in ___minutes if it is good chemical strength
what is the xray taken to examine the whole tooth?
what does a CMRS/FMX show?
all dentulous and edentulous portions of the upper and lower jaw
a PA should be ___ to ___mm beyond root apices
2.0 to 3.0 mm
the film should be _____ to the long axis of the tooth and the beam should be _____ to film
what can be used for a shallow palate
two cotton rolls and vertical angulation increase but no more than 20 degrees
where should the film be placed when a patient has a tori
on the far side of the tori
how do you correct a film where the apices are not present?
make sure film is no more than 1/8 inch beyond the incisal/occlusal surface
what is the cause for an overlapped contact?
incorrect horizontal angulation
what is the cause of long distorted teeth?
vertical angulation is incorrect
what causes a double exposure?
exposed film in patients mouth twice
what will be seen if the film is exposed reversed?
what is the benefit of paralleling vs bisecting?
paralleling has decreased distortion
For x-ray timers calibrated impulses how many impulses are there in one sec?