Deck 10: Quality Assurance in the Dental Office

Question 1

If the processor is functioning properly, the results of the automatic processor test films will be that:

A) The unexposed film appears clear and dry, and the film exposed to light appears black and dry.
B) The unexposed film appears clear and wet, and the film exposed to light appears black and wet.
C) The unexposed film appears black and dry, and the film exposed to light appears clear and dry.
D) The unexposed film appears black and wet, and the film exposed to light appears clear and wet.

Answer 1

The unexposed film appears clear and dry, and the film exposed to light appears black and dry.

Question 2

The viewbox should emit a uniform and subdued light when it is functioning properly. Permanently discolored Plexiglas surfaces and blackened fluorescent light bulbs must be replaced.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second statement is false.
D) The first statement is false; the second statement is true.

Answer 2

Both statements are true.

Question 3

A reference radiograph is used to evaluate:

A) The viewbox.
B) Darkroom lighting.
C) Safelighting.
D) Developer strength.

Answer 3

Developer strength.

Question 4

Extraoral intensifying screens that appear visibly scratched should:

A) Be cleaned with commercially available cleaner.
B) Have antistatic solution applied.
C) Be replaced.
D) Be polished and then reused.

Question 5

To conduct the coin test, the film and coin are exposed for:

A) 10 seconds.
B) 3 or 4 minutes.
C) 15 minutes.
D) An entire workday.

Question 6

To test the automatic film processor, ____ in the automatic processor.

A) Unwrap one film, expose it to light, and then process the film
B) Unwrap one film, do not expose it to light, and then process the film
C) Unwrap two unexposed films, expose one to light, and then process the exposed film
D) Unwrap two unexposed films, expose one to light, and then process both films

Question 7

Which of the following statements is true of the evaluation of the film-screen contact test?

A) Areas of poor film-screen contact appear darker than good contact areas.
B) Areas of poor film-screen contact appear lighter than good contact areas.
C) If the wire mesh image on the film exhibits varying densities, good film-screen contact has taken place.
D) Both a and c.

Question 8

To conduct a film-screen contact test, the wire mesh test object is placed:

A) On top of the loaded cassette.
B) On the side of the film closest to the tubehead within the loaded cassette.
C) On the side of the film farthest from the tubehead within the loaded cassette.
D) Over the end of the PID.

Question 9

A calibration test for accurate kilovoltage and milliamperage readings would most likely be performed to ensure that the dental ____ is functioning properly.

A) X-ray machine
B) Film
C) Film processing
D) Darkroom

Question 10

To perform the coin test, the film and coin are exposed to:

A) The safelight.
B) The darkroom ceiling or white light.
C) The light with the darkroom door open.
D) No light at all.

Question 11

The results of a film-screen contact test should be viewed on a viewbox in a:

A) Dimly lit room at a distance of 1 foot.
B) Brightly lit room at a distance of 1 foot.
C) Dimly lit room at a distance of 6 feet.
D) Brightly lit room at a distance of 6 feet.

Question 12

Safelighting can be checked with the ____ test.

A) Wire mesh
B) Fogging
C) Coin
D) Stepwedge

Question 13

According to the test for dental x-ray film, if the processed film appears clear with a slight blue tint, the film:

A) Has expired.
B) Is fresh and has been properly stored and protected.
C) Has been improperly stored.
D) Has been exposed to radiation.

Question 14

Extraoral intensifying screens should be cleaned:

A) Daily
B) Weekly
C) Monthly
D) Yearly

Question 15

During the light leak test for the darkroom:

A) A flashlight should be used to check for light leaks.
B) The overhead lights should be off, but the safelight should be on.
C) All lights within the darkroom should be off.
D) Light a match within the darkroom, and see if any light is visible from the outside.

Question 16

A reference radiograph is compared with a radiograph taken each day for matched:

A) Milliamperage
B) kVp
C) Color
D) Density

Question 17

A film-screen contact test is used to test the:

A) Output of the x-ray machine.
B) Quality of intraoral films.
C) Cassette holder for extraoral films.
D) Freshness of extraoral film.

Question 18

If the image of the coin appears on the processed radiograph after the coin test:

A) The safelighting is correct.
B) The safelighting is not safe to use with that type of film.
C) Conduct the test again with the darkroom door closed rather than open.
D) Conduct the test again with the safelight off rather than on.

Question 19

To create a reference radiograph, which of the following must be fresh? 1. Film
2) Developer
3) Fixer

A) 1, 2, 3
B) 1, 2
C) 2, 3
D) 1 only

Question 20

To conduct the film-screen contact test, the position-indicating device (PID) should have a ____-inch target-film distance.

A) 6
B) 12
C) 40
D) 72

Question 21

If the densities seen on the daily radiographs appear darker than those seen on the reference radiographs, the developer solution is (1) weak, (2) too concentrated, (3) cold, and/or (4) too warm.

A) 1 and 3
B) 1 and 4
C) 2 and 3
D) 2 and 4

Question 22

The clearing test is used to monitor:

A) Developer strength.
B) Fixer strength.
C) Water bath temperature.
D) Processing speed.

Question 23

When the stepwedge technique is used to evaluate developer strength, if the density on the daily radiograph differs from that on the standard radiograph by more than ____ steps, the developer solution is depleted.

A) Two
B) Three
C) Five
D) Seven

Question 24

If the film clears in ____ minutes, the chemistry is of adequate strength.

A) 2
B) 6
C) 8
D) 14

Question 25

The stepwedge technique for evaluating developer strength relies on exposing one exposed stepwedge film:

A) Each day.
B) Each week.
C) Every time 20 films have been processed.
D) Every time 40 films have been processed.