Chapter 22

Question 2

Which anatomical landmark is found in the maxillary posterior region of a panoramic radiograph?

Answer 2

Middle cranial fossa

Question 3

Which anatomical landmark is found in both the maxillary anterior AND posterior region of a panoramic radiograph?

Answer 3

Hard palate

Question 4

Which anatomical landmark is found in the mandibular anterior region of a panoramic radiograph?

Answer 4

Mental ridge

Question 5

Which anatomical landmark is found in the mandibular posterior region of a panoramic radiograph?

Answer 5

Submandibular fossa

Question 6

Which of the following is described by soft tissue observed at the edges of panoramic radiographs as faint radiopaque outlines superimposed over the styloid process, anterior and inferior to the mastoid process?

Answer 6

Ear

Question 7

Which of the following is described by the radiolucency between the palate and tongue that presents if the tongue is not correctly positioned against the palate during panoramic exposures?

Answer 7

Palatoglossal air space

Question 8

Is panoramic radiography based on the principles of tomography?

Answer 8

TRUE

Question 9

Can skills developed for interpretation of intraoral radiographs be expanded and adapted for successful interpretation of panoramic images?

Answer 9

TRUE

Question 10

Is a panoramic image unable to separate structures to make it possible to focus on a narrow slice of tissue at a time?

Answer 10

FALSE

Question 11

In panoramic imaging, are three-dimensional structures of the head and neck broadened and flattened?

Answer 11

TRUE

Question 12

Is the goal of panoramic technology to isolate and produce a blurred image of the dental arches?

Answer 12

FALSE

Question 13

Will all anatomical features of the maxilla and mandible recorded on intraoral radiographs also be recorded on panoramic images?

Answer 13

TRUE

Question 14

Do genial tubercles appear on a panoramic radiograph as a radiopaque, donut-shaped circle surrounding the lingual foramen?

Answer 14

TRUE

Question 15

Will the glossopharyngeal air space appear on a panoramic radiograph as an open area posterior to the tongue?

Answer 15

TRUE

Question 16

Is the nasopharyngeal air space located between the tongue and the palate?

Answer 16

FALSE

Question 17

Do ghost images and negative shadows enhance interpretation?

Answer 17

FALSE

Question 18

Are panoramic images unable to record additional bones and structures of the maxillofacial region?

Answer 18

FALSE

Question 19

Can panoramic images possibly record cartilage and calcifications of ligaments located in the neck?

Answer 19

TRUE

Question 20

Are soft tissues recorded by panoramic images?

Answer 20

FALSE

Question 21

Must panoramic images be interpreted by the dentist for all deviations from normal anatomy?

Answer 21

TRUE

Question 22

Is it not possible to identify carotid arterial plaques on some panoramic images?

Answer 22

FALSE

Question 23

Do air spaces appear with varying degrees of radiopacity on panoramic images?

Answer 23

FALSE

Question 24

Can air spaces compromise the diagnostic ability of the panoramic radiograph?

Answer 24

TRUE

Question 25

Are panoramic machine parts sometimes recorded on panoramic images?

Answer 25

TRUE

Question 26

Could a ghost image appear on the left side of a clearly recorded right side mandible?

Answer 26

TRUE

Question 27

Are some anatomical structures more readily observed than others on panoramic images?

Answer 27

TRUE

Question 28

What is the name of the anatomic landmark that appears on a panoramic image as a long, narrow radiopaque spine extending downward from the inferior surface of the temporal bone?

Answer 28

Styloid process

Question 29

What is the name of the anatomic landmark that appears on a panoramic image as a round, radiolucent opening in the temporal bone located anterior and superior of the mastoid process?

Answer 29

External auditory meatus

Question 30

What is the name of the anatomic landmark that appears on a panoramic image as a radiopaque, winglike bony projection of the sphenoid bone located posterior to the maxillary tuberosity?

Answer 30

Lateral pterygoid plate

Question 31

What is the name of the anatomic landmark that appears on a panoramic image as a concave, depressed area of the temporal bone located anterior to the external auditory meatus?

Answer 31

Glenoid fossa

Question 32

What is the name of the anatomic landmark that appears on a panoramic image as a pea-shaped, radiolucent opening in the bone located between the roots of the maxillary central incisors?

Answer 32

Incisive foramen

Question 33

What is the name of the anatomic landmark that appears on a panoramic image as a thick radiopaque horizontal band superior to the maxillary teeth?

Answer 33

Hard palate

Question 34

What is the name of the anatomic landmark that appears on a panoramic image as a radiolucent ovoid or round opening in the center of the ramus of the mandible?

Answer 34

Mandibular foramen

Question 35

What is the name of the anatomic landmark that appears on a panoramic image as a radiolucent, tunnel-like passageway outlined by two thin radiopaque lines?

Answer 35

Mandibular canal

Question 36

What is the name of the anatomic landmark that appears on a panoramic image as a radiolucent, round opening on the body of the mandible, near the roots of the mandibular premolars?

Answer 36

Mental foramen

Question 37

What causes the unusual anatomical relationships on panoramic images that are not seen on intraoral radiographs?

Answer 37

The principles of tomography cause wide broadening of the dental arches combined with superimposition of structures.