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NELDA PRACTICE 1 - QUESTIONS WITH 100% VERIFIED ANSWERS
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NELDA PRACTICE 1 - QUESTIONS WITH 100% VERIFIED ANSWERS...
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NELDA PRACTICE 1 - QUESTIONSWITH 100% VERIFIED ANSWERS
If a patient tries to look at the technician during a panoramic
radiograph, what will the image look like? - ANSWER Teeth large on
one side of the image and small on the other side
What is used to take a panoramic radiograph? - ANSWER Film
cassette
The computer used for digital imaging - ANSWER can be used for
other office functions
which way do x-rays travel? - ANSWER straight line
A radiograph that is too light is most likely an example of what? -
ANSWER Underexposed
A film that is too light is the result of? - ANSWER Increasing target-
to-film distance
A herringbone pattern on low density film is caused by? - ANSWER
Backward placement of the film packet
Which intraoral radiograph would you use on a patient who needs oral
surgery? - ANSWER Periapical
The speed of film is determined by? - ANSWER The size of the silver
halide crystals
The thyrocervical collar is positioned to cover the? - ANSWER
Throat
, Film speed is not determined by? - ANSWER Black paper in film
packet
How many film sizes do you have to choose from with a bitewing
radiograph? - ANSWER 4
What size film is used when taking occlusals? - ANSWER Size 4
What is the benefit of using dual film packets? - ANSWER Protects
pts from unnecessary radiation, cost effective, creates two images in
one exposure
What is the best way to prevent fingerprints on film? - ANSWER
Wear gloves
What is NOT true of patients who do not have teeth? - ANSWER
They do not need radiographs
A tissue that lies within primary dental beam and is very
radiosensitive is the? - ANSWER Cornea
What should you do for a nervous patient? - ANSWER Explain the
steps of the radiography
What will static electricity cause on a panoramic image? - ANSWER
Black marks
The oldest intraoral radiographic technique is the? - ANSWER
Bisecting the angle technique
The dental assistant is using a size 2 receptor for anterior placements
using the bisecting technique. Which of the following radiographs
would be exposed first? - ANSWER Canine (tooth #6)
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