Question 1

There are two methods of acquiring a digital image.

Accepted Answer

A) True 
 B)False  True

Question 2

Do digital imaging systems necessarily require a computer and monitor to capture and view an image?

Accepted Answer

Yes. The type and size of computer required depends on the digital imaging software to be used

Question 3

What is the purpose of digital imaging measuring software?

Accepted Answer

Linear and angular measurements obtained with a software "ruler" or measuring feature are useful in measuring the length of root canals during endodontic treatment and for estimating bone loss.

Question 4

How can two images, taken over time, be compared using digital subtraction?

Accepted Answer

Two standardized radiographic images of

Question 5

Which digital image receptor uses rare earth-coated plates to store the x-ray energy until stimulated by a laser beam?

Accepted Answer

A)  Charge-coupled device 
B)  Photostimulable phosphor 
C)  Complementary metal oxide semiconductor 
A)  Charge-coupled device 
B)  Photostimulable phosphor 
C)  Complementary metal oxide semiconductor

Question 6

How much less radiation exposure is a digital radiograph purported to be over a fast speed film-based radiograph?

Accepted Answer

A)  0 to 20 percent 
B)  0 to 30 percent 
C)  0 to 50 percent 
D)  0 to 80 percent 
A)  0 to 20 percent 
B)  0 to 30 percent 
C)  0 to 50 percent 
D)  0 to 80 percent

Question 7

Using digital radiographic software to detect caries is an example of artificial intelligence.

Accepted Answer

A) True 
 B)False

Question 8

Which of these is used in indirect digital imaging?

Accepted Answer

A)  Photostimuable phosphor 
B)  Complementary metal oxide semiconductor 
C)  Charge-coupled device 
D)  Artificial intelligence 
A)  Photostimuable phosphor 
B)  Complementary metal oxide semiconductor 
C)  Charge-coupled device 
D)  Artificial intelligence

Question 9

By what mechanism are PSP plates reusable?

Accepted Answer

The images stored on PSP plate

Question 10

Which of these is NOT an advantage of digital imaging over film-based imaging?

Accepted Answer

A)  There is less radiation exposure. 
B)  It eliminates the need for a darkroom. 
C)  It is easier to place into position in the oral cavity. 
D)  Images may be manipulated to enhance interpretation. 
A)  There is less radiation exposure. 
B)  It eliminates the need for a darkroom. 
C)  It is easier to place into position in the oral cavity. 
D)  Images may be manipulated to enhance interpretation.

Question 11

Which of the following is NOT a type of digital image receptor?

Accepted Answer

A)  Photostimulable phosphor 
B)  Scanner 
C)  Complementary metal oxide semiconductor 
D)  Charge-coupled device 
A)  Photostimulable phosphor 
B)  Scanner 
C)  Complementary metal oxide semiconductor 
D)  Charge-coupled device

Question 12

What are the advantages of digital radiography?

Accepted Answer

Less radiation required, almost instant

Question 13

Which of these statements is FALSE?

Accepted Answer

A)  The digital image is composed of structurally ordered pixels. 
B)  Each pixel is a single dot in a digital image. 
C)  Pixel is short for "pixel element." 
D)  Each pixel has a number from 1 to 10. 
A)  The digital image is composed of structurally ordered pixels. 
B)  Each pixel is a single dot in a digital image. 
C)  Pixel is short for "pixel element." 
D)  Each pixel has a number from 1 to 10.

Question 14

Solid-state digital sensors are available wired of wireless.

Accepted Answer

A) True 
 B)False

Question 15

Film-based radiographs contain analog data.

Accepted Answer

A) True 
 B)False

Question 16

Each of the following statements regarding digitization is correct EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  The quality of an indirect digital image has the same quality as a direct digital image. 
B)  Digitization converts conventional film-based radiographs to digital images. 
C)  Transparency adapters for digitization of radiographs are available for flatbed scanners. 
D)  Digitization can be accomplished by taking a digital photograph of a film-based radiograph. 
A)  The quality of an indirect digital image has the same quality as a direct digital image. 
B)  Digitization converts conventional film-based radiographs to digital images. 
C)  Transparency adapters for digitization of radiographs are available for flatbed scanners. 
D)  Digitization can be accomplished by taking a digital photograph of a film-based radiograph.

Question 17

Direct digital imaging does not use film.

Accepted Answer

A) True 
 B)False

Question 18

Each of the following statements regarding digital radiography is correct EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  In film-based radiography, the radiographer "takes a radiograph," while in digital imaging, the radiographer "acquires an image." 
B)  A digital image has no physical form. 
C)  Digital radiography systems are limited to intraoral systems. 
D)  Indirect digital imaging replaces film with a photostimulable plate. 
A)  In film-based radiography, the radiographer "takes a radiograph," while in digital imaging, the radiographer "acquires an image." 
B)  A digital image has no physical form. 
C)  Digital radiography systems are limited to intraoral systems. 
D)  Indirect digital imaging replaces film with a photostimulable plate.

Question 19

Which requires less radiation to produce an image, digital or conventional film-based radiographs?

Accepted Answer

Digital radiography. Radiation

Question 20

The lower the line pairs per millimeter, the better the spatial resolution.

Accepted Answer

A) True 
 B)False

Exam 9: Infection Control

There are two methods of acquiring a digital image.

Do digital imaging systems necessarily require a computer and monitor to capture and view an image?

What is the purpose of digital imaging measuring software?

How can two images, taken over time, be compared using digital subtraction?

Which digital image receptor uses rare earth-coated plates to store the x-ray energy until stimulated by a laser beam?

How much less radiation exposure is a digital radiograph purported to be over a fast speed film-based radiograph?

Using digital radiographic software to detect caries is an example of artificial intelligence.

Which of these is used in indirect digital imaging?

By what mechanism are PSP plates reusable?

Which of these is NOT an advantage of digital imaging over film-based imaging?

Which of the following is NOT a type of digital image receptor?

What are the advantages of digital radiography?

Which of these statements is FALSE?

Solid-state digital sensors are available wired of wireless.

Film-based radiographs contain analog data.

Each of the following statements regarding digitization is correct EXCEPT one. Which one is the EXCEPTION?

Direct digital imaging does not use film.

Each of the following statements regarding digital radiography is correct EXCEPT one. Which one is the EXCEPTION?

Which requires less radiation to produce an image, digital or conventional film-based radiographs?

The lower the line pairs per millimeter, the better the spatial resolution.

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

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 Patients With Special Needs

Radiographic Techniques for Specific Oral Conditions

Radiographic Techniques

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