Question 1

For a maxillary molar disto-oblique periapical radiograph, the vertical angulation is that used for the standard paralleling technique.

Accepted Answer

A)  increased by 5 degrees over 
B)  increased by 10 degrees over 
C)  decreased by 5 degrees from 
D)  decreased by 10 degrees from 
A)  increased by 5 degrees over 
B)  increased by 10 degrees over 
C)  decreased by 5 degrees from 
D)  decreased by 10 degrees from A

Question 2

Can radiographs be exposed during endodontic therapy?

Accepted Answer

Yes. The patient cannot bite down on the bite block of conventional image receptor holders with endodontic instrumentation in the tooth. Special holders are available

Question 3

Positioning the image receptor slightly diagonally, with the front edge a greater distance from the lingual surfaces of molars than the back edge, will aid in:

Accepted Answer

A)  using the bisecting technique. 
B)  avoiding overlap of the contacts between adjacent teeth. 
C)  aligning the image receptor perpendicular to the embrasures. 
D)  eliminating patient discomfort. 
A)  using the bisecting technique. 
B)  avoiding overlap of the contacts between adjacent teeth. 
C)  aligning the image receptor perpendicular to the embrasures. 
D)  eliminating patient discomfort. B

Question 4

When tori are present, where should the image receptor be placed?

Accepted Answer

Behind the torus. The image re

Question 5

What is the name of bony protuberances that may arise on the palate and lingual surfaces of the mandible of some patients?

Accepted Answer

Tori. The torus pala

Question 6

A series of radiographs on the same tooth is needed to evaluate various stages of endodontic treatment.

Accepted Answer

A) True 
 B)False

Question 7

It is often difficult to use standard image receptor holders for radiographs during endodontic procedures.

Accepted Answer

A) True 
 B)False

Question 8

What is a duplicate radiograph?

Accepted Answer

An identical copy of an origin

Question 9

In the totally edentulous patient, a fair amount of leeway in horizontal angulation is permissible.

Accepted Answer

A) True 
 B)False

Question 10

What are three methods of localization?

Accepted Answer

The definitive evalu

Question 11

A correctly placed and angled canine periapical radiograph will often demonstrate overlapping where?

Accepted Answer

The distal of the canine and m

Question 12

Which of the following is NOT a reason to expose radiographs on an edentulous patient?

Accepted Answer

A)  To establish the position of anatomical structures prior to implants 
B)  To assess the density of tori 
C)  To determine the quality and condition of alveolar bone 
D)  To detect retained root tips or impactions 
A)  To establish the position of anatomical structures prior to implants 
B)  To assess the density of tori 
C)  To determine the quality and condition of alveolar bone 
D)  To detect retained root tips or impactions

Question 13

Each of the following statements regarding the use of radiographs during endodontic therapy is true EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Special endodontic image receptor holders are available. 
B)  The bisecting technique is the technique of choice. 
C)  The presence of endodontic instrumentation makes it impossible for a patient to bite down on the bite block of conventional image receptor holders. 
D)  The avoidance of magnification and distortion is essential. 
A)  Special endodontic image receptor holders are available. 
B)  The bisecting technique is the technique of choice. 
C)  The presence of endodontic instrumentation makes it impossible for a patient to bite down on the bite block of conventional image receptor holders. 
D)  The avoidance of magnification and distortion is essential.

Question 14

Which of these statements regarding acceptable alterations of radiographic technique is FALSE?

Accepted Answer

A)  Position the image receptor with the posterior edge a greater distance from the lingual surfaces of the teeth. 
B)  Position the image receptor perpendicular to the embrasures of the teeth of interest. 
C)  Expose two radiographs utilizing two different horizontal angles in the same region. 
D)  Redirect the horizontal angle to intersect the image receptor from the distal to avoid canine-premolar overlap. 
A)  Position the image receptor with the posterior edge a greater distance from the lingual surfaces of the teeth. 
B)  Position the image receptor perpendicular to the embrasures of the teeth of interest. 
C)  Expose two radiographs utilizing two different horizontal angles in the same region. 
D)  Redirect the horizontal angle to intersect the image receptor from the distal to avoid canine-premolar overlap.

Question 15

A torus mandibularis is a benign outgrowth of bone along the midline of the hard palate.

Accepted Answer

A) True 
 B)False

Question 16

What is the principle behind the tubeshift method of localization?

Accepted Answer

If the structure or object of interest a

Question 17

In patients with a low palatal vault, the vertical angulation can be increased up to 15 degrees to compensate for the lack of parallelism without noticeable distortion.

Accepted Answer

A) True 
 B)False

Question 18

Which of these is NOT a method of localization?

Accepted Answer

A)  The tube-shift method 
B)  The working radiograph method 
C)  The definitive evaluation method 
D)  The right-angle method 
A)  The tube-shift method 
B)  The working radiograph method 
C)  The definitive evaluation method 
D)  The right-angle method

Question 19

Each of the following requires a decrease in exposure settings EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Children 
B)  Older adults 
C)  Edentulous regions 
D)  The mandibular incisor region 
A)  Children 
B)  Older adults 
C)  Edentulous regions 
D)  The mandibular incisor region

Question 20

Because the edentulous ridge is less dense, the amount of radiation needed to produce a diagnostic image is less.

Accepted Answer

A) True 
 B)False

Exam 28: Radiographic Techniques for Patients With Special Needs

For a maxillary molar disto-oblique periapical radiograph, the vertical angulation is that used for the standard paralleling technique.

Can radiographs be exposed during endodontic therapy?

Positioning the image receptor slightly diagonally, with the front edge a greater distance from the lingual surfaces of molars than the back edge, will aid in:

When tori are present, where should the image receptor be placed?

What is the name of bony protuberances that may arise on the palate and lingual surfaces of the mandible of some patients?

A series of radiographs on the same tooth is needed to evaluate various stages of endodontic treatment.

It is often difficult to use standard image receptor holders for radiographs during endodontic procedures.

What is a duplicate radiograph?

In the totally edentulous patient, a fair amount of leeway in horizontal angulation is permissible.

What are three methods of localization?

A correctly placed and angled canine periapical radiograph will often demonstrate overlapping where?

Which of the following is NOT a reason to expose radiographs on an edentulous patient?

Each of the following statements regarding the use of radiographs during endodontic therapy is true EXCEPT one. Which one is the EXCEPTION?

Which of these statements regarding acceptable alterations of radiographic technique is FALSE?

A torus mandibularis is a benign outgrowth of bone along the midline of the hard palate.

What is the principle behind the tubeshift method of localization?

In patients with a low palatal vault, the vertical angulation can be increased up to 15 degrees to compensate for the lack of parallelism without noticeable distortion.

Which of these is NOT a method of localization?

Each of the following requires a decrease in exposure settings EXCEPT one. Which one is the EXCEPTION?

Because the edentulous ridge is less dense, the amount of radiation needed to produce a diagnostic image is less.

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

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 Specific Oral Conditions

Radiographic Techniques

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