Question 1

An acute abscess may be barely discernable radiographically.

Accepted Answer

A) True 
 B)False  True

Question 2

Thin radiolucent lines that demarcate a region of bone or tooth separation are called what?

Accepted Answer

Fracture lines. The two most common injuries observed on dental radiographs are fractures of facial bones and fractures of teeth. Fractures sometimes look similar to nutrient canals.

Question 3

Which of these statements regarding the radiographic appearance of dental materials is FALSE?

Accepted Answer

A)  A full metal crown may be distinguished from amalgam by its smooth margins. 
B)  A stainless steel crown has a see-through appearance. 
C)  A porcelain jacket appears more radiopaque than a full metal crown. 
D)  Porcelain appears about the same density as dentin. 
A)  A full metal crown may be distinguished from amalgam by its smooth margins. 
B)  A stainless steel crown has a see-through appearance. 
C)  A porcelain jacket appears more radiopaque than a full metal crown. 
D)  Porcelain appears about the same density as dentin. C

Question 4

Hypercementosis appears radiopaque and is caused by excessive cementum formation.

Accepted Answer

A) True 
 B)False

Question 5

The dentigerous cyst is an odontogenic cyst that develops at the apex of a nonvital tooth.

Accepted Answer

A) True 
 B)False

Question 6

Each of the following should be determined from the radiographic image EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  The identity of the anatomical landmark 
B)  The normal size and shape of the anatomical landmark 
C)  Whether the anatomical landmark is in the appropriate region 
D)  Whether pathosis if the anatomical landmark is absent 
A)  The identity of the anatomical landmark 
B)  The normal size and shape of the anatomical landmark 
C)  Whether the anatomical landmark is in the appropriate region 
D)  Whether pathosis if the anatomical landmark is absent

Question 7

Each of the following must be added to radiographic findings for accurate diagnosis EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Medical and dental history 
B)  Clinical observations 
C)  Signs and symptoms 
D)  Past radiation exposure 
A)  Medical and dental history 
B)  Clinical observations 
C)  Signs and symptoms 
D)  Past radiation exposure

Question 8

Which of the following terms means "the absence of teeth"?

Accepted Answer

A)  Supernumerary 
B)  Anodontia 
C)  Anomaly 
D)  Mesiodens 
A)  Supernumerary 
B)  Anodontia 
C)  Anomaly 
D)  Mesiodens

Question 9

Radiographs can be used to determine an overhang.

Accepted Answer

A) True 
 B)False

Question 10

A cyst is an epithelium-lined sac containing fluid or other fibrous or solid material that appears radiolucent.

Accepted Answer

A) True 
 B)False

Question 11

A torus is a bony growth projecting outward from the surface of a bone.

Accepted Answer

A) True 
 B)False

Question 12

Unless a cyst is completely removed at the time of tooth extraction, it will remain and is then called a "radicular cyst."

Accepted Answer

A) True 
 B)False

Question 13

A taurodont tooth is a single tooth bud that divides and forms two teeth.

Accepted Answer

A) True 
 B)False

Question 14

Each of the following dental materials may be observed within the pulp chamber and/or root canals of the tooth EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Post and core 
B)  A silver point 
C)  Gutta-percha 
D)  An implant 
A)  Post and core 
B)  A silver point 
C)  Gutta-percha 
D)  An implant

Question 15

The term "idiopathic resorption" can apply to either external or internal resorption.

Accepted Answer

A) True 
 B)False

Question 16

Each of the following is true regarding the radiographic appearance of composite restorations EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  They may appear either radiopaque or radiolucent. 
B)  They may appear with irregular or diffuse margins. 
C)  They may mimic caries. 
D)  They may appear about the same density as cementum. 
A)  They may appear either radiopaque or radiolucent. 
B)  They may appear with irregular or diffuse margins. 
C)  They may mimic caries. 
D)  They may appear about the same density as cementum.

Question 17

What is the most common odontogenic tumor?

Accepted Answer

The answer of What is the most common odontogenic tumor?...

Question 18

What is the term used for calcifications that may occur in the dental pulp of some teeth?

Accepted Answer

Pulp stones. Pulp stones appea

Question 19

What is the name of the process characterized by root-end resorption in which the roots of the teeth appear shorter than normal?

Accepted Answer

External resorption. While mos

Question 20

When a developmental anomaly occurs in which the enamel invaginates within the body of the tooth, it is called "mesiodens."

Accepted Answer

A) True 
 B)False

Exam 3: Radiographic Appearance of Dental Materials and Foreign Objects

An acute abscess may be barely discernable radiographically.

Thin radiolucent lines that demarcate a region of bone or tooth separation are called what?

Which of these statements regarding the radiographic appearance of dental materials is FALSE?

Hypercementosis appears radiopaque and is caused by excessive cementum formation.

The dentigerous cyst is an odontogenic cyst that develops at the apex of a nonvital tooth.

Each of the following should be determined from the radiographic image EXCEPT one. Which one is the EXCEPTION?

Each of the following must be added to radiographic findings for accurate diagnosis EXCEPT one. Which one is the EXCEPTION?

Which of the following terms means "the absence of teeth"?

Radiographs can be used to determine an overhang.

A cyst is an epithelium-lined sac containing fluid or other fibrous or solid material that appears radiolucent.

A torus is a bony growth projecting outward from the surface of a bone.

Unless a cyst is completely removed at the time of tooth extraction, it will remain and is then called a "radicular cyst."

A taurodont tooth is a single tooth bud that divides and forms two teeth.

Each of the following dental materials may be observed within the pulp chamber and/or root canals of the tooth EXCEPT one. Which one is the EXCEPTION?

The term "idiopathic resorption" can apply to either external or internal resorption.

Each of the following is true regarding the radiographic appearance of composite restorations EXCEPT one. Which one is the EXCEPTION?

What is the most common odontogenic tumor?

What is the term used for calcifications that may occur in the dental pulp of some teeth?

What is the name of the process characterized by root-end resorption in which the roots of the teeth appear shorter than normal?

When a developmental anomaly occurs in which the enamel invaginates within the body of the tooth, it is called "mesiodens."

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

Recognizing Normal Radiographic Anatomy Panoramic Radiographs

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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