Domain I - Expose and Evaluate

Question 1

What are the two radiographic exposure concepts!?

Answer 1

Intraoral / Extraoral

Question 2

Means inside the mouth

Answer 2

Intraoral

Question 3

Means outside the mouth

Answer 3

Extraoral

Question 4

is a measurement of force that refers to the potential difference between two electrical charges. Higher of this creates an x-ray beam that can go through thicker/denser areas

Answer 4

Voltage

Question 5

is the maximum voltage or an alternating current. This also controls the quality of the x-ray beam. Can be considered a fix value during exposure

Answer 5

Kilovoltage

Question 6

is the overall darkness or blackness of an image. When kilovoltage is increased this is also increased and vice versa

Answer 6

Density

Question 7

refers to how sharply dark and light areas are different and/or sepearted in an image. As kilovoltage decreases this will increase and vice versa.

Answer 7

Contrast

Question 8

refers to the interval of time during which x-rays are produced. If this increases then more x-rays are taken and a darker image results

Answer 8

Exposure Time

Question 9

2 basic fundamentals for this technique: the image receptor is placed parallel to the long axis of the tooth. AND The central ray of the x-ray beam is perpendicular to the tooth.

Answer 9

Paralleling Technique

Question 10

These are advantages for what kind of technique!? : Accuracy, Simplicity, and Duplication

Answer 10

Paralleling Technique

Question 11

These are disadvantage for what kind of technique!? : Receptor placement AND Discomfort

Answer 11

Parallelling Technique

Question 12

12. Main errors in what kind of technique!? : Foreshortening AND Elongation

Answer 12

Bisecting Technique

Question 13

13. These are all reasons to use the bisecting technique : Narrow arch, short lingual frenum, mal-aligned teeth, tori, edentulous. True OR False !?

Answer 13

TRUE

Question 14

The _____ film is used for examination of large areas of the maxilla or the mandible.

Answer 14

Occlusal- (p.65)

Question 15

True or False: The periapical film is used to examine the entire tooth (crown & root) and supporting bone.

Answer 15

True (p.64)

Question 16

The bite-wing film is particularly useful in examining ________, or adjacent, tooth surfaces.

Answer 16

Interproximal (p. 64)

Question 17

What is an extraoral technique that is used to examine the maxilla and the mandible on a single projection?

Answer 17

Panoramic Image (p. 244)

Question 18

List 5 things that will prepare our patient for the radiograph being taken.

Answer 18

1. Explain procedure
2. Adjust chair
3. Adjust the headrest
4. Place & secure the lead apron with thyroid collar
5. Request patient remove eyeglasses and all objects from the mouth or face that could interfere with procedure. (p. 182 or 203)

Question 19

What is the image that shows the bony and soft tissue areas of the facial profile?

Answer 19

A cephalometric image – (p.66)

Question 20

What is the imaging technique that uses a cone-shaped x-ray beam to acquire information and present it in 3D?

Answer 20

Cone-Beam Computed Tomography (CBCT)- (p.299)

Question 21

What three sizes are available for periapical film?

Answer 21

Size 0(very small children), size 1(anterior teeth in adults), size 2 (known as standard film for adults for anterior & posterior)- (p. 65)

Question 22

What three sizes are available for bite-wing film?

Answer 22

Size 0 (small children), size 2 (most frequently used, for older children & adults), size 3 (shows all posterior teeth on one side of arch in one radiograph)- (p. 65)

Question 23

What size does the occlusal film come in?

Answer 23

Size 4 (used to show large areas of the maxilla or the mandible)- (p.65)

Question 24

What technique could you use for someone with severe gag reflexes?

Answer 24

Starts with anterior exposures, then premolar shot before the molars, and then the maxillary molars must be last.

Question 25

T/F: Deep breathing through the nose helps a patient with severe gag reflexes.

Answer 25

True

Question 26

Why are radiographic examination techniques modified so often?

Answer 26

To accommodate patients with special needs.

Question 27

is a reflex contraction of the muscles of the throat caused especially by stimulation (as by touch) of the pharynx.

Answer 27

Gag reflex

Question 28

How should you approach a patient with visual impairments?

Answer 28

Give clear verbal directions, offer to guide them with your arm, explain each procedure before doing it with clear instructions.

Question 29

What should you do if your patient has a hearing impairment?

Answer 29

Use their caretaker as an interpreter, use a lot of gestures and facial expressions, write down instructions if needed, face the patient when speaking, and talk slow and clear.

Question 30

We should use a and a when taking radiographs on a pregnant woman.

Answer 30

Lead apron and thyroid collar

Question 31

How should you handle a patient with a mobility disability?

Answer 31

Assist then in the dental chair if able, make sure they are comfortable before performing any tasks, and ask the caregiver for assistance if need be.

Question 32

You (should or should not) ask the patient personal questions about their disability.

Answer 32

Should not

Question 33

What are some features for a diagnostically acceptable image?

Answer 33

Image is clear, shows all parts of the tooth, no placement errors, and correct exposure time

Question 34

Too much vertical angulation results in images that are?

Answer 34

Foreshortening

Question 35

An overexposed image appears?

Answer 35

Dark

Question 36

An underexposed image appears?

Answer 36

Light

Question 37

If the Kilo voltage is low the image has what type of density and contrast

Answer 37

Low density and high contrast

Question 38

As long as you have a lead apron being exposed to radiation doesn’t affect you.

Answer 38

False