Quiz 6 (Radiography)

Question 1

The _________ is the distinct, opaque, uninterrupted, white line parallel to the tooth root as seen on dental radiographs

Answer 1

Lamina dura

Question 2

Cone beam tomography is useful in which of the following?

Answer 2

(All of these) Creating a three-dimensional rendering of pathology not visible clinically, evaluating the thickness of bone and periodontal ligament, evaluating periodontal and endodoncia disease

Question 3

Signs of endodoncia disease include all of the following except:

Answer 3

Radiodensity around the apex of the tooth root

Question 4

Direct radiography

Answer 4

Uses a computer to process the image

Question 5

Which of the following are uses for dental radiography?

Answer 5

(All of these) identification of neoplasia, evaluation of bone loss, documenting progress of dental therapy

Question 6

T/F Dental radiology is an essential part of complete dental diagnostic procedures in all patients.

Answer 6

False

Question 7

Aiming the radiographing cone at the tooth rather than the bisecting angle results in _________ of the image

Answer 7

Elongation

Question 8

All of the following are components of digital dental radiography units except:

Answer 8

Fixed arm

Question 9

Routine dental radiographs find pathology not identified during clinical examination in

Answer 9

25% or more of dogs and 40% or more of cats.

Question 10

Regarding cone beam computed tomography, which of the following is NOT true?

Answer 10

Requires a mental extension for head placement.

Question 11

When rotating digital images for viewing, the left mandible should have the crown pointing ___________ with the molars located on the ________ side of the screen.

Answer 11

Up; right

Question 12

Radiographic signs of periodontal disease include

Answer 12

(All of these) Rounding and loss of the alveolar crest, increased periodontal ligament space, horizontal bone loss

Question 13

When taking dental radiographs

Answer 13

The patient must be under general anesthesia

Question 14

Intraoral film

Answer 14

(All of these)

Is inexpensive, small, and flexible
Is non-screen film
Can be processed in 1-2 minutes in rapid developer and fixer solutions

Question 15

According to information in the textbook, a complete dental radiographic study can be obtained in as little as _____ views

Answer 15

6

Question 16

When viewing dental radiographs, the crown of the maxillary teeth point _________

Answer 16

Down

Question 17

In the bisecting-angle technique, the x-ray machine head is positioned so that the beam of the x-ray will be ______ the imaginary bisecting-angle line

Answer 17

Perpendicular to

Question 18

All of the following are true regarding positioning for dental radiography except:

Answer 18

Make sure to position each patient in lateral recumbency for all images

Question 19

When positioning a patient for dental radiographic imaging, the side of the patient ______ is the side you are viewing

Answer 19

Closest to you

Question 20

In the normal young patient, radiographs of the teeth will reveal a _______ pulp chamber and _______ dentinal wall

Answer 20

Large; thin