Question 1

How does the lateral fossa appear on a dental radiograph?

Accepted Answer

As a radiolucency between the maxillary ...

Question 2

What is the compact or dense bone observed on dental radiographs called?

Accepted Answer

A)   Cortical
B)   Cancellous
C)   Trabecular
D)   HoneycombE) A) and B)
F) A) and C)

Question 3

Which of the following statements regarding normal anatomic landmarks is correct?

Accepted Answer

A)   The maxillae are two bones, a left maxilla and a right maxilla.
B)   There are right and left mandibular bones.
C)   There are two frontal bones, a right and a left.
D)   The sphenoid bone is also called the "malar bone" or "cheekbone."E) B) and C)
F) C) and D)

Question 4

What is the thin radiopaque border that outlines the root of the tooth called?

Accepted Answer

A)   The trabeculae
B)   The periodontal ligament space
C)   The alveolar process
D)   The lamina duraE) A) and D)
F) A) and C)

Question 5

The alveolar process is that portion of the maxilla or mandible that surrounds and supports the teeth.

Accepted Answer

A) True 
 B)False

Question 6

A line of union of adjacent cranial or facial bones that appears radiolucent on radiographs is called a "suture."

Accepted Answer

A) True 
 B)False

Question 7

Certain anatomical landmarks may or may not be imaged on dental radiographs depending on:

Accepted Answer

A)   placement of the image receptor.
B)   patient positioning.
C)   the angle of the x-ray beam.
D)   All of the above.E) B) and D)
F) B) and C)

Question 8

What is the radiopaque ridge that extends forward and downward on the lateral surface of the mandible called?

Accepted Answer

The answer of What is the radiopaque ridge that extends...

Question 9

Examples of anatomic landmarks that may appear on a mandibular posterior radiograph include the oblique ridge, mylohyoid ridge, and mental foramen.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is the correct term for a tooth that fails to erupt?

Accepted Answer

A)   Supernumerary tooth
B)   Impacted tooth
C)   Primary tooth
D)   Permanent toothE) A) and B)
F) A) and C)

Question 11

Which of these statements is FALSE?

Accepted Answer

A)   The incisive foramen appears as a round or pear-shaped radiolucency between the apices of the maxillary central incisors.
B)   The nasal fossa appears as two paired radiolucencies separated by the radiopaque nasal septum.
C)   The lateral fossa appears as a radiolucency between the maxillary canine and first premolar.
D)   The median palatine suture appears as a thin radiolucent line between the maxillary central incisors.E) None of the above
F) A) and B)

Question 12

The lingual foramen is a very small opening located in the center of the genial tubercles on the lingual side of the mandible.

Accepted Answer

A) True 
 B)False

Question 13

Cortical bone varies in radiopacity according to the size and number of trabeculae.

Accepted Answer

A) True 
 B)False

Question 14

The genial tubercles are most likely to be recorded on an intraoral radiograph of the:

Accepted Answer

A)   maxillary anterior region.
B)   maxillary posterior region.
C)   mandibular anterior region.
D)   mandibular posterior region.E) A) and C)
F) None of the above

Question 15

While the maxillary sinus appears radiolucent on a radiograph, the maxillary sinus walls appear radiopaque.

Accepted Answer

A) True 
 B)False

Question 16

Small, interconnected trabeculae form a multitude of various-sized compartments that account for the honeycomb appearance of cancellous bone radiographically.

Accepted Answer

A) True 
 B)False

Question 17

Examples of anatomic landmarks that may appear on a mandibular anterior radiograph include the genial tubercles, lingual foramen, and mental ridge.

Accepted Answer

A) True 
 B)False

Question 18

The periodontal ligament space appears as a thin radiolucent line between the lamina dura and the root of the tooth.

Accepted Answer

A) True 
 B)False

Question 19

What is the round radiolucency often observed near the apices of the mandibular premolars called?

Accepted Answer

Mental foramen. The mental foramen permi...

Question 20

The oblique ridge is most likely to be recorded on an intraoral radiograph of the:

Accepted Answer

A)   maxillary anterior region.
B)   maxillary posterior region.
C)   mandibular anterior region.
D)   mandibular posterior region.E) A) and C)
F) A) and D)

Exam 22: Recognizing Normal Radiographic Anatomy Panoramic Radiographs

Certain anatomical landmarks may or may not be imaged on dental radiographs depending on:

Correct AnswerverifiedShow Answer

The periodontal ligament space appears as a thin radiolucent line between the lamina dura and the root of the tooth.

Correct AnswerverifiedShow Answer

What is the compact or dense bone observed on dental radiographs called?

Correct AnswerverifiedShow Answer

Examples of anatomic landmarks that may appear on a mandibular posterior radiograph include the oblique ridge, mylohyoid ridge, and mental foramen.

Correct AnswerverifiedShow Answer

The genial tubercles are most likely to be recorded on an intraoral radiograph of the:

Correct AnswerverifiedShow Answer

The lingual foramen is a very small opening located in the center of the genial tubercles on the lingual side of the mandible.

Correct AnswerverifiedShow Answer

What is the round radiolucency often observed near the apices of the mandibular premolars called?

Correct AnswerverifiedMental foramen. The mental foramen permi...View AnswerShow Answer

What is the thin radiopaque border that outlines the root of the tooth called?

Correct AnswerverifiedShow Answer

While the maxillary sinus appears radiolucent on a radiograph, the maxillary sinus walls appear radiopaque.

Correct AnswerverifiedShow Answer

Small, interconnected trabeculae form a multitude of various-sized compartments that account for the honeycomb appearance of cancellous bone radiographically.

Correct AnswerverifiedShow Answer

What is the radiopaque ridge that extends forward and downward on the lateral surface of the mandible called?

Correct AnswerverifiedShow Answer

Examples of anatomic landmarks that may appear on a mandibular anterior radiograph include the genial tubercles, lingual foramen, and mental ridge.

Correct AnswerverifiedShow Answer

Which of the following statements regarding normal anatomic landmarks is correct?

Correct AnswerverifiedShow Answer

Which of these statements is FALSE?

Correct AnswerverifiedShow Answer

The <KT>alveolar process</KT> is that portion of the maxilla or mandible that surrounds and supports the teeth.

Correct AnswerverifiedShow Answer

Cortical bone varies in radiopacity according to the size and number of trabeculae.

Correct AnswerverifiedShow Answer

A line of union of adjacent cranial or facial bones that appears radiolucent on radiographs is called a "suture."

Correct AnswerverifiedShow Answer

The oblique ridge is most likely to be recorded on an intraoral radiograph of the:

Correct AnswerverifiedShow Answer

How does the lateral fossa appear on a dental radiograph?

Correct AnswerverifiedAs a radiolucency between the maxillary ...View AnswerShow Answer

Which of the following is the correct term for a tooth that fails to erupt?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Mental foramen. The mental foramen permi...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
As a radiolucency between the maxillary ...
View Answer

Correct Answer
verified