Dental Imaging Flashcards
Minimum distance by law
6 feet
Expandable cord allows the operator to stand how far away
10-15 feet
Average kvp and ma
Kvp- 70-90
mA- 7-8
Extension cone is positioned how far from pt
4 inches
Dental film- 1, 2, 3, 4 used for
1- cats and small dogs
2- individual teeth
3- human
4- rostral max/mand views in dogs
Speed D Vs E
D- ultra
E- ekta
What size dental film is most common
2 and 4
The raised dot should always face the… And be placed in what position
Face the tube and be placed in rostral pos.
Most common error of processing
Exhausted chemicals
How often to change chemicals for size 2 and 4
2- 15-20 films
4- 10-15 films
Parallel technique includes what teeth only
Mandible premolars and molars
Standing views for pm/m
Standing views for incisors/k9s
Pm/m- front
Incisors/ canines- side
Bisecting angle technique is used for what teeth
Maxillary teeth, incisors, canines, mandibular premolars
Where is the beam directed during b/a technique
Imaginary line equidistant between film and tooth
How is animal positioned for b/a technique
Dorsal and ventral
Position for lower canines and incisors
Dorsal recumbency
Position for upper incisors, canines, pm/m
Ventral recumbency
SLOB
Same lingual
Opposite buccal
When image is too short or too long
It’s the fault if incorrect angulation
Uneven developing, developer spilled on film before processing, light leaks
What happens?
Black spots
Fixer spilled on film before processing. What happened?
White spots
Needs more fixation. What’s it look like?
Green tint. Put back in fixer
A mottled film indicates what? Put film in fresh fixer
Exhausted chemicals
Why would a film look yellow or brown
Aged. Occurs during storage with chemical residues
