Question 1

Digital radiography is now another link to the paperless dental office.

Accepted Answer

A) True 
 B)False  True

Question 2

One advantage of the storage phosphor technique is that the sensor:

Accepted Answer

A) is larger. 
B) is thicker. 
C) is slightly more flexible. 
D) is more sensitive to radiation. 
A) is larger. 
B) is thicker. 
C) is slightly more flexible. 
D) is more sensitive to radiation. C

Question 3

The definition seen on a digital image compared to film is:

Accepted Answer

A) better. 
B) the same. 
C) slightly less. 
D) exaggerated. 
A) better. 
B) the same. 
C) slightly less. 
D) exaggerated. C

Question 4

Identify the most critical part of a digital radiography system:

Accepted Answer

A) monitor. 
B) digital sensor. 
C) x-ray machine. 
D) laptop computer. 
A) monitor. 
B) digital sensor. 
C) x-ray machine. 
D) laptop computer.

Question 5

Identify the main disadvantage of digital imaging:

Accepted Answer

A) infection control. 
B) bulky,rigid sensors. 
C) environmental waste issues. 
D) lack of definition and detail. 
A) infection control. 
B) bulky,rigid sensors. 
C) environmental waste issues. 
D) lack of definition and detail.

Question 6

Two types of direct sensors are CMOS and CCD.

Accepted Answer

A) True 
 B)False

Question 7

What is the function of the laser with a storage phosphor sensor?

Accepted Answer

A) Digitizes the image. 
B) Stores the x-ray energy. 
C) Transmits the image to the computer. 
D) Digitizes the image and Stores the x-ray energy. 
A) Digitizes the image. 
B) Stores the x-ray energy. 
C) Transmits the image to the computer. 
D) Digitizes the image and Stores the x-ray energy.

Question 8

A digital image is composed of structurally ordered areas called:

Accepted Answer

A) pixels. 
B) signals. 
C) sensors. 
D) phosphors. 
A) pixels. 
B) signals. 
C) sensors. 
D) phosphors.

Question 9

Instead of duplication we can now send the third-party payer:

Accepted Answer

A) the original films. 
B) transmitted images. 
C) a telephone description. 
D) a hard copy of the digital radiograph. 
A) the original films. 
B) transmitted images. 
C) a telephone description. 
D) a hard copy of the digital radiograph.

Question 10

In the optical scanning method,one starts with the digital radiograph.

Accepted Answer

A) True 
 B)False

Question 11

Identify the advantage of digital imaging that is most attractive to the busy dental practice:

Accepted Answer

A) patient education. 
B) faster image acquisition. 
C) reduction in radiation dose. 
D) more levels of contrast produced. 
A) patient education. 
B) faster image acquisition. 
C) reduction in radiation dose. 
D) more levels of contrast produced.

Question 12

The wireless system that uses a plate and laser beam scanning to produce an image is known as:

Accepted Answer

A) storage phosphor system. 
B) optically scanned digital imaging. 
C) direct digital radiography with CCD system. 
D) direct digital radiography with CMOS system. 
A) storage phosphor system. 
B) optically scanned digital imaging. 
C) direct digital radiography with CCD system. 
D) direct digital radiography with CMOS system.

Question 13

The computer used for digital imaging:

Accepted Answer

A) is nonessential hardware. 
B) can be used for other functions. 
C) cannot be used for other office functions. 
D) is the most expensive component of the system. 
A) is nonessential hardware. 
B) can be used for other functions. 
C) cannot be used for other office functions. 
D) is the most expensive component of the system.

Question 14

In a digital image,you could expect to have:

Accepted Answer

A) 10 shades of gray. 
B) 32 shades of gray. 
C) 100 shades of gray. 
D) 256 shades of gray. 
A) 10 shades of gray. 
B) 32 shades of gray. 
C) 100 shades of gray. 
D) 256 shades of gray.

Question 15

Utilizing digital imaging,the operator should be standing at a minimum of:

Accepted Answer

A) 6 feet from the source of radiation. 
B) 2 feet from the source of radiation. 
C) 1 foot from the source of radiation. 
D) 3 feet from the source of radiation. 
A) 6 feet from the source of radiation. 
B) 2 feet from the source of radiation. 
C) 1 foot from the source of radiation. 
D) 3 feet from the source of radiation.

Question 16

"The sensor is connected by a wire to the computer,and after exposure,the image appears instantly on the monitor" describes which type of digital system?

Accepted Answer

A) Direct digital radiography 
B) Storage phosphor system 
C) Indirect digital radiography 
D) Optically scanned digital imaging 
A) Direct digital radiography 
B) Storage phosphor system 
C) Indirect digital radiography 
D) Optically scanned digital imaging

Question 17

Digital imaging allows for manipulation of the image.All of the following can be manipulated EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A) The image can be darkened. 
B) The image can be lightened. 
C) The image can be magnified. 
D) Elongation or foreshortening can be corrected. 
A) The image can be darkened. 
B) The image can be lightened. 
C) The image can be magnified. 
D) Elongation or foreshortening can be corrected.

Question 18

Compared to D-speed film,the reduction of radiation dose to the patient when using digital imaging is approximately:

Accepted Answer

A) 10%. 
B) 25%. 
C) 50%. 
D) 90%. 
A) 10%. 
B) 25%. 
C) 50%. 
D) 90%.

Question 19

The cost of a digital imaging unit is approximately $15,000.

Accepted Answer

A) True 
 B)False

Question 20

One of the advantages of digital radiography over film is faster image acquisition.

Accepted Answer

A) True 
 B)False

Exam 15: Digital Imaging

Digital radiography is now another link to the paperless dental office.

One advantage of the storage phosphor technique is that the sensor:

The definition seen on a digital image compared to film is:

Identify the most critical part of a digital radiography system:

Identify the main disadvantage of digital imaging:

Two types of direct sensors are CMOS and CCD.

What is the function of the laser with a storage phosphor sensor?

A digital image is composed of structurally ordered areas called:

Instead of duplication we can now send the third-party payer:

In the optical scanning method,one starts with the digital radiograph.

Identify the advantage of digital imaging that is most attractive to the busy dental practice:

The wireless system that uses a plate and laser beam scanning to produce an image is known as:

The computer used for digital imaging:

In a digital image,you could expect to have:

Utilizing digital imaging,the operator should be standing at a minimum of:

"The sensor is connected by a wire to the computer,and after exposure,the image appears instantly on the monitor" describes which type of digital system?

Digital imaging allows for manipulation of the image.All of the following can be manipulated EXCEPT one.Which one is the EXCEPTION?

Compared to D-speed film,the reduction of radiation dose to the patient when using digital imaging is approximately:

The cost of a digital imaging unit is approximately $15,000.

One of the advantages of digital radiography over film is faster image acquisition.

The History of Ionizing Radiation and Basic Principles of X-Ray Generation

The Dental X-Ray Machine

Image Formation

Image Receptors

Biologic Effects of Radiation

Patient Protection

Operator Protection

Infection Control in Dental Radiography

Intraoral Radiographic Technique: the Paralleling Method

Accessory Radiographic Techniques: Bisecting Technique and Occlusal Projections

Film Processing Techniques

Panoramic Radiography

Extraoral Techniques

Radiography of the Temporomandibular Joint

Advanced Imaging Systems

Quality Assurance

Patient Management and Special Problems

Film Mounting and Radiographic Anatomy

Principles of Radiographic Interpretation

Caries and Periodontal Disease

Pulpal and Periapical Lesions

Developmental Disturbances of Teeth and Bone

Bone and Other Lesions

Legal Considerations

Filters