Question 1

Which of the following structures of the tooth appears the most radiopaque?

Accepted Answer

A)  Cementum 
B)  Enamel 
C)  Dentin 
D)  Pulp 
A)  Cementum 
B)  Enamel 
C)  Dentin 
D)  Pulp B

Question 2

What are the four small radiopaque bony crests imaged at the midline of the mandible called?

Accepted Answer

Genial tubercles. These tubercles serve as muscle attachments. Because of their proximity to each other, they appear as one round radiopaque "doughnut" at the midline beneath the apices of the central incisors.

Question 3

What is the very small, circular radiolucency often observed in the middle of the radiopaque genial tubercles called?

Accepted Answer

Lingual foramen. Because it is so small, the lingual foramen may not always be imaged

Question 4

A thin radiopaque line delineates the midline of the palate and the junction of the right and left maxilla.

Accepted Answer

A) True 
 B)False

Question 5

Nutrient canals are thin radiolucent lines of uniform width that sometimes exhibit radiopaque borders.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following soft tissues may be imaged on an intraoral dental radiograph?

Accepted Answer

A)  Eyelid 
B)  Ear lobe 
C)  Tip of the nose 
D)  Cheek 
A)  Eyelid 
B)  Ear lobe 
C)  Tip of the nose 
D)  Cheek

Question 7

Cancellous bone appears extremely radiopaque.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following lists the structures in order of decreasing radiopacity?

Accepted Answer

A)  Pulp, dentin, cementum, enamel 
B)  Enamel, dentin, cementum, pulp 
C)  Pulp, cementum, dentin, enamel 
D)  Enamel, cementum, dentin, pulp 
A)  Pulp, dentin, cementum, enamel 
B)  Enamel, dentin, cementum, pulp 
C)  Pulp, cementum, dentin, enamel 
D)  Enamel, cementum, dentin, pulp

Question 9

The nasal septum appears as a radiopaque "V"-shaped projection from the floor of the nasal fossa in the midline.

Accepted Answer

A) True 
 B)False

Question 10

What is the thin radiolucent line that delineates the midline of the palate and the junction of the right and left maxilla called?

Accepted Answer

Median pal

Question 11

Which of the following provides the best organizational framework of steps to aid in learning how to interpret normal radiographic anatomy?

Accepted Answer

A)  First, determine if the structure in question is anterior or posterior; second, determine if radiopaque or radiolucent; third determine if maxilla or mandible. 
B)  First, determine if the structure in question is maxilla or mandible; second, determine if anterior or posterior; third, determine if radiopaque or radiolucent. 
C)  First, determine if the structure in question is radiopaque or radiolucent; second, determine if maxilla or mandible; third determine if anterior or posterior. 
D)  First, determine if the structure in question is anterior or posterior; second, determine if maxilla or mandible; third determine if radiopaque or radiolucent. 
A)  First, determine if the structure in question is anterior or posterior; second, determine if radiopaque or radiolucent; third determine if maxilla or mandible. 
B)  First, determine if the structure in question is maxilla or mandible; second, determine if anterior or posterior; third, determine if radiopaque or radiolucent. 
C)  First, determine if the structure in question is radiopaque or radiolucent; second, determine if maxilla or mandible; third determine if anterior or posterior. 
D)  First, determine if the structure in question is anterior or posterior; second, determine if maxilla or mandible; third determine if radiopaque or radiolucent.

Question 12

Examples of anatomic landmarks that may appear on a maxillary anterior radiograph include the nasal septum, anterior nasal spine, and soft tissue shadow of the nose.

Accepted Answer

A) True 
 B)False

Question 13

An important radiographic landmark is the inverted "Y," which is seen between the right and left nasal fossae.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following bone types will appear the most radiopaque?

Accepted Answer

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

Question 15

Examples of anatomic landmarks that appear radiopaque include foramina, canals, and sutures.

Accepted Answer

A) True 
 B)False

Question 16

What is a bony growth extending out from the lingual surface of the mandible called?

Accepted Answer

Torus mandibularis. Depending on the siz

Question 17

Which of the following describes the radiographic appearance of the lamina dura?

Accepted Answer

A)  A thin radiolucent border that outlines the root of the tooth 
B)  A thin radiopaque border that outlines the root of the tooth 
C)  A radiolucent honeycomb layer adjacent to the root of the tooth 
D)  A radiopaque honeycomb layer adjacent to the root of the tooth 
A)  A thin radiolucent border that outlines the root of the tooth 
B)  A thin radiopaque border that outlines the root of the tooth 
C)  A radiolucent honeycomb layer adjacent to the root of the tooth 
D)  A radiopaque honeycomb layer adjacent to the root of the tooth

Question 18

The coronoid process 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 19

What term is applied to a large, irregularly shaped radiolucency below the mylohyoid ridge and roots of the mandibular molars?

Accepted Answer

The answer of What term is applied to a large,...

Question 20

Structures that are dense and absorb or resist the passage of x-rays will appear dark or black on the radiograph.

Accepted Answer

A) True 
 B)False

Exam 22: Recognizing Normal Radiographic Anatomy Panoramic Radiographs

Which of the following structures of the tooth appears the most radiopaque?

What are the four small radiopaque bony crests imaged at the midline of the mandible called?

What is the very small, circular radiolucency often observed in the middle of the radiopaque genial tubercles called?

A thin radiopaque line delineates the midline of the palate and the junction of the right and left maxilla.

Nutrient canals are thin radiolucent lines of uniform width that sometimes exhibit radiopaque borders.

Which of the following soft tissues may be imaged on an intraoral dental radiograph?

Cancellous bone appears extremely radiopaque.

Which of the following lists the structures in order of decreasing radiopacity?

The nasal septum appears as a radiopaque "V"-shaped projection from the floor of the nasal fossa in the midline.

What is the thin radiolucent line that delineates the midline of the palate and the junction of the right and left maxilla called?

Which of the following provides the best organizational framework of steps to aid in learning how to interpret normal radiographic anatomy?

Examples of anatomic landmarks that may appear on a maxillary anterior radiograph include the nasal septum, anterior nasal spine, and soft tissue shadow of the nose.

An important radiographic landmark is the inverted "Y," which is seen between the right and left nasal fossae.

Which of the following bone types will appear the most radiopaque?

Examples of anatomic landmarks that appear radiopaque include foramina, canals, and sutures.

What is a bony growth extending out from the lingual surface of the mandible called?

Which of the following describes the radiographic appearance of the lamina dura?

The coronoid process is most likely to be recorded on an intraoral radiograph of the:

What term is applied to a large, irregularly shaped radiolucency below the mylohyoid ridge and roots of the mandibular molars?

Structures that are dense and absorb or resist the passage of x-rays will appear dark or black on the radiograph.

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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