Question 1

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 2

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 dura 
A)  The trabeculae 
B)  The periodontal ligament space 
C)  The alveolar process 
D)  The lamina dura

Question 3

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 4

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." 
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."

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

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. 
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.

Question 7

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 8

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

Accepted Answer

A)  Cortical 
B)  Cancellous 
C)  Trabecular 
D)  Honeycomb 
A)  Cortical 
B)  Cancellous 
C)  Trabecular 
D)  Honeycomb

Question 9

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

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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 12

How does the lateral fossa appear on a dental radiograph?

Accepted Answer

As a radiolucency between the maxillary

Question 13

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. 
A)  maxillary anterior region. 
B)  maxillary posterior region. 
C)  mandibular anterior region. 
D)  mandibular posterior region.

Question 14

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

Accepted Answer

Mental foramen. The mental foramen permi

Question 15

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 16

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 17

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 tooth 
A)  Supernumerary tooth 
B)  Impacted tooth 
C)  Primary tooth 
D)  Permanent tooth

Question 18

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. 
A)  maxillary anterior region. 
B)  maxillary posterior region. 
C)  mandibular anterior region. 
D)  mandibular posterior region.

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

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

Exam 22: Recognizing Normal Radiographic Anatomy Panoramic Radiographs

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

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

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

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

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

Which of these statements is FALSE?

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

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

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

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

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

How does the lateral fossa appear on a dental radiograph?

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

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

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

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

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

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

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

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

Dental Radiography: Historical Perspective and Future Trends

Characteristics and Measurement of Radiation

The Dental X-Ray Machine: Components and Function

Factors Affecting Radiographic Quality

Effects of Radiation Exposure

Radiation Protection

Dental X-Ray Film and Processing Methods

Digital Radiography and Image Acquisition

Infection Control

Legal and Ethical Responsibilities

Patient Relations and Education

Introduction to Radiographic Examinations

The Periapical Examinationparalleling Technique

The Periapical Examinationbisecting Technique

The Bitewing Examination

The Occlusal Examination

The Panoramic Examination

Identifying and Correcting Undiagnostic Radiographs

Quality Control and Environmental Safety in Dental Radiography

Image Orientation and Introduction to Interpretation

Recognizing Normal Radiographic Anatomy Intraoral Radiographs

Radiographic Appearance of Dental Materials and Foreign Objects

The Use of Radiographs in the Detection of Dental Caries

The Use of Radiographs in the Evaluation of Periodontal Diseases

Describing Radiographic Anomalies, Lesions, and Opportunistic Screening

Pediatric Radiographic Techniques

Radiographic Techniques for Patients With Special Needs

Radiographic Techniques for Specific Oral Conditions

Radiographic Techniques

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