Question 1

The United States Nuclear Regulatory Commission has developed dose limits for radiographers and patients.

Accepted Answer

A) True 
 B)False

Question 2

Federal regulations require that the intraoral x-ray beam be collimated to a diameter of 3.75 inches
at the patient's skin.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following statements regarding x-ray equipment is FALSE?

Accepted Answer

A)  A short (8 in/20.5 cm) PID delivers less radiation to the patient. 
B)  Total filtration is the sum of inherent and added filtration. 
C)  A filter placed in the path of the x-ray beam reduces patient radiation exposure. 
D)  An external collimator can be attached to the PID to achieve rectangular collimation. 
A)  A short (8 in/20.5 cm) PID delivers less radiation to the patient. 
B)  Total filtration is the sum of inherent and added filtration. 
C)  A filter placed in the path of the x-ray beam reduces patient radiation exposure. 
D)  An external collimator can be attached to the PID to achieve rectangular collimation.

Question 4

The sum of inherent and added filtration is called .

Accepted Answer

Total filtration. Inherent filtration is

Question 5

Dental radiation exposure to the patient can be reduced by each of the following EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Using the fastest speed film currently available 
B)  Prescribing exams based on evidence-based selection criteria 
C)  Holding the image receptor in the patient's mouth 
D)  Restricting the size and shape of the x-ray beam 
A)  Using the fastest speed film currently available 
B)  Prescribing exams based on evidence-based selection criteria 
C)  Holding the image receptor in the patient's mouth 
D)  Restricting the size and shape of the x-ray beam

Question 6

The maximum permissible dose (MPD) for oral health care professionals is 50 mSv/year.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following statements regarding radiation monitoring is FALSE?

Accepted Answer

A)  Area monitoring measures output of the x-ray machine. 
B)  A radiation monitoring service provides a reliable record of occupational radiation exposure. 
C)  Personnel monitoring devices protect the wearers from scatter radiation. 
D)  TLDs and OSLs are examples of personnel monitoring devices. 
A)  Area monitoring measures output of the x-ray machine. 
B)  A radiation monitoring service provides a reliable record of occupational radiation exposure. 
C)  Personnel monitoring devices protect the wearers from scatter radiation. 
D)  TLDs and OSLs are examples of personnel monitoring devices.

Question 8

Guidelines for prescribing radiographs are based on:

Accepted Answer

A)  medical and dental histories. 
B)  clinical examination. 
C)  signs and symptoms. 
D)  All of the above. 
A)  medical and dental histories. 
B)  clinical examination. 
C)  signs and symptoms. 
D)  All of the above.

Question 9

Should the patient wear a thyroid collar during panoramic radiography?

Accepted Answer

No. The use of a thyroid colla

Question 10

Which of the following statements is FALSE?

Accepted Answer

A)  Processing errors increase patient radiation exposure by resulting in retake radiographs. 
B)  Following the time-temperature method of processing radiographs produces images of ideal quality. 
C)  Careful attention to chemical replenishment avoids retakes. 
D)  It is acceptable to increase the dose while underdeveloping the film if time is short. 
A)  Processing errors increase patient radiation exposure by resulting in retake radiographs. 
B)  Following the time-temperature method of processing radiographs produces images of ideal quality. 
C)  Careful attention to chemical replenishment avoids retakes. 
D)  It is acceptable to increase the dose while underdeveloping the film if time is short.

Question 11

The best way to reduce patient radiation exposure is to:

Accepted Answer

A)  expose routine radiographs. 
B)  determine the risk/benefit ratio prior to exposure. 
C)  develop office policy for the maximum number of exposures permissible per patient. 
D)  use evidence-based selection criteria for prescribing radiographs. 
A)  expose routine radiographs. 
B)  determine the risk/benefit ratio prior to exposure. 
C)  develop office policy for the maximum number of exposures permissible per patient. 
D)  use evidence-based selection criteria for prescribing radiographs.

Question 12

Currently, what film speed is recommended to reduce radiation exposure?

Accepted Answer

F. There are currently three available d

Question 13

Which intraoral technique should be the radiographer's first choice when exposing periapical radiographs?

Accepted Answer

Parallelin

Question 14

Each of the following protects the radiographer from radiation EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Wearing a personnel-monitoring device 
B)  Increased distance from the source of radiation 
C)  Standing behind protective shielding during exposure 
D)  Spending less time near radiation-producing equipment 
A)  Wearing a personnel-monitoring device 
B)  Increased distance from the source of radiation 
C)  Standing behind protective shielding during exposure 
D)  Spending less time near radiation-producing equipment

Question 15

Increasing the dose of radiation is a recommended method to compensate for weak processing solutions.

Accepted Answer

A) True 
 B)False

Question 16

A personnel monitoring device can NOT:

Accepted Answer

A)  record the amount of radiation received. 
B)  measure the amount of radiation received. 
C)  protect the operator from receiving radiation. 
D)  indicate the type of radiation received. 
A)  record the amount of radiation received. 
B)  measure the amount of radiation received. 
C)  protect the operator from receiving radiation. 
D)  indicate the type of radiation received.

Question 17

What is the term given to the walls or partitions around the dental x-ray machine that protect the radiographer against scatter radiation?

Accepted Answer

Structural shielding. Plaster, cinderblo

Question 18

If the tube head support arm drifts from its appropriate position when taking a radiograph, the radiographer should ask the patient to hold the PID stable during the exposure.

Accepted Answer

A) True 
 B)False

Question 19

Each of the following statements regarding the technical ability of radiographers is correct EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  They have the ability to communicate clear and concise instructions to the patient. 
B)  They possess a thorough understanding of how to produce quality images 
C)  They understand how to perform dental x-ray machine inspections 
D)  They participate in continuing education 
A)  They have the ability to communicate clear and concise instructions to the patient. 
B)  They possess a thorough understanding of how to produce quality images 
C)  They understand how to perform dental x-ray machine inspections 
D)  They participate in continuing education

Question 20

If the area of interest is imaged correctly on an adjacent radiograph, it is possible that an undiagnostic radiograph may not need to be retaken.

Accepted Answer

A) True 
 B)False

Exam 6: Radiation Protection

The United States Nuclear Regulatory Commission has developed dose limits for radiographers and patients.

Federal regulations require that the intraoral x-ray beam be collimated to a diameter of 3.75 inches at the patient's skin.

Which of the following statements regarding x-ray equipment is FALSE?

The sum of inherent and added filtration is called .

Dental radiation exposure to the patient can be reduced by each of the following EXCEPT one. Which one is the EXCEPTION?

The maximum permissible dose (MPD) for oral health care professionals is 50 mSv/year.

Which of the following statements regarding radiation monitoring is FALSE?

Guidelines for prescribing radiographs are based on:

Should the patient wear a thyroid collar during panoramic radiography?

Which of the following statements is FALSE?

The best way to reduce patient radiation exposure is to:

Currently, what film speed is recommended to reduce radiation exposure?

Which intraoral technique should be the radiographer's first choice when exposing periapical radiographs?

Each of the following protects the radiographer from radiation EXCEPT one. Which one is the EXCEPTION?

Increasing the dose of radiation is a recommended method to compensate for weak processing solutions.

A personnel monitoring device can NOT:

What is the term given to the walls or partitions around the dental x-ray machine that protect the radiographer against scatter radiation?

If the tube head support arm drifts from its appropriate position when taking a radiograph, the radiographer should ask the patient to hold the PID stable during the exposure.

Each of the following statements regarding the technical ability of radiographers is correct EXCEPT one. Which one is the EXCEPTION?

If the area of interest is imaged correctly on an adjacent radiograph, it is possible that an undiagnostic radiograph may not need to be retaken.

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

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 Patients With Special Needs

Radiographic Techniques for Specific Oral Conditions

Radiographic Techniques

Filters