processing and technical errors study chart Flashcards
film placement
appearance: cuts off occlusion, cuts off premolar
error?
did not put rinn together right- placed film incorrectly
cone cut
appearance?
error?
x ray beam not centered radiopaque area on film
improper rinn; has to go in center
overlapping appearance
cant see interproximals; radiopaque, overlapping of crowns
overlapping error
incorrect horizontal angulation
reversed film appearance
tire tracks on film
reversed film error
white not towards tubehead, reversed film
elongation appearance and error
long teeth; not enough vertical angulation
foreshortening appearance and error
short, squatty teeth; excessive vertical elongation
super imposed image appearance
2 different teeth
superimposed image error
use same film twice
double exposure appearance and error
dark radiograph; pressing exposure button twice
blurred image appearance and error
blurred; patient /tubehead moved
excessing bending/film creasing appearance and error
crescent shaped black lines; bending film too much
underexposed.underdeveloped appearance and error
too light; ma or kvp too low, or solution too cold
film exposed to light appearance and error
radiolucent area; exposed to light in dark room, opening film in light
developer spots appearance and error
dark spots on film; developer contamination
fixer spots appearance and error
white spots; fixer contamination- air bubble
insufficient rinsing/incomplete fixing appearance and error
yellow/brown stain; depleted wash or depleted fixer
films stuck together appearance and error
green tinge; overlapped during processing
dirty rollers appearance and error
streaks/ light lines across film; not cleaning rollers
static electricity appearance and error
spider on tooth/ dark lines looks like tree; opening film too fast
lead apron appearance and error
radiopaque area; thyroid collar in the way(beam blocked by collar)
overexposed/overdeveloped appearance and error
dark film; excessive exposure/ developing time;;;; solution too warm, kvp and ma and time too high, light leaks
incomplete submersion in developer appearance and error
gray area; did not emmerse all the way down in solution
no image on film appearance and error
show up as blue film; never exposed
scratches appearance and error
white lines; scratch with fingernails, poor handling error(poor handling)
film fog appearance and error
grainy/gray film; expired film(contrast decreased)
