Radiography

Question 1

What happens if a patient is exposed to high levels of radiation?

Answer 1

DNA can mutate and cause cancer and deformities.

Question 2

What colour is decay found on xrays?

Answer 2

Dark patches.

Question 3

What colour are amalgam fillings seen on xrays?

Answer 3

white patches.

Question 4

What is the technical name for white on an xray?

Answer 4

Radiopaque.

Question 5

What is the technical name for dark on an xray?

Answer 5

Radiolucent.

Question 6

What are the three things radiation waves can do when they are exposed?

Answer 6

Unalter, Scatter and Absorb.

Question 7

Why are dosages changed?

Answer 7

Dosages are changed depending on the tooth and patient whether that be an adult or child.

Question 8

What does ALARP stand for?

Answer 8

As Low As Reasonably Practicable.

Question 9

How far way must you stand from the xray machine?

Answer 9

2 metres which is called the controlled area.

Question 10

How often must radiation equipment be serviced?

Answer 10

Every 3 years.

Question 11

What are intra oral x-rays?

Answer 11

X-rays taken inside the mouth.

Question 12

What are extra-oral x-rays?

Answer 12

X-rays taken outside the mouth.

Question 13

What does OPG stand for?

Answer 13

Orthopantomagram.

Question 14

What does DPT stand for?

Answer 14

Dental Panoramic Radiograph

Question 15

How many stages are there in a automatic film processor?

Answer 15

4 stages.

Question 16

What are the stages within the automatic film processor?

Answer 16

Developer, Fixer, Water Rinse, Dryer.

Question 17

What is the ideal temperature for the automatic film processor?

Answer 17

Between 18-20 degrees.

Question 18

Indirect Digital- Photostimulable Phosphor. How are these developed?

Answer 18

The exposed x-ray plate is taken to a scanner and inserted and when developed it is uploaded onto a computer.

Question 19

Direct Digital- Complementary Metal Oxide Semi-Conductor. How is this developed?

Answer 19

The exposed x-ray plate is connected to a wire or can be wireless which is linked to the computer within the surgery and the image is displayed on the computer screen.

Question 20

What does a light x-ray fault mean?

Answer 20

Under exposed.

Question 21

What does a dark x-ray fault mean?

Answer 21

Over exposed.

Question 22

What does dark lines through the x-ray image mean?

Answer 22

The phosphor plate is damaged.

Question 23

What does a blurred image fault mean?

Answer 23

The patient or the kilo-meter was moving during exposure.

Question 24

What does a blank image fault mean?

Answer 24

The phosphor plate has not been exposed to radiation.

Question 25

What does it mean if the image is green/brown fault?

Answer 25

The chemical within the processor have expired.

Question 26

What are the scores for radiographic image grading process.

Answer 26

1, Excellent.
2, Diagnostically Acceptable.
3, Unacceptable Quality.

Question 27

What are the grades for two quality rating scale.

Answer 27

Diagnostically Acceptable (A) Not Acceptable (N)

Question 28

Audits must be completed on radiography equipment how often?

Answer 28

Every 3-12 months.

Question 29

What is a Lateral Cephalogram?

Answer 29

Side view of the skull.

Question 30

What is a Lateral Oblique?

Answer 30

Side view of the molars.