Question 1

A dark image occurs when the developing solution is diluted.

Accepted Answer

A) True 
 B)False  False

Question 2

When using film, the corrective action for a radiograph that displays a "tire track" pattern is to:

Accepted Answer

A)  thoroughly clean the rollers of the automatic processor. 
B)  position film intraorally with the tube side toward the source of radiation. 
C)  carefully separate the lead foil from the film packet before processing. 
D)  lower the temperature of the processing chemicals. 
A)  thoroughly clean the rollers of the automatic processor. 
B)  position film intraorally with the tube side toward the source of radiation. 
C)  carefully separate the lead foil from the film packet before processing. 
D)  lower the temperature of the processing chemicals. B

Question 3

The image receptor should be placed with the long dimension horizontal for exposure of anterior periapical radiographs.

Accepted Answer

A) True 
 B)False  False

Question 4

Which of the following identifies the cause and corrective action for an image with overlapping of the proximal contacts in which the overlap appears more severe in the posterior region than the anterior region?

Accepted Answer

A)  Mesiodistal projection of the central ray caused the error. Shift the tube toward the anterior to correct this error. 
B)  Mesiodistal projection of the central ray caused the error. Shift the tube toward the posterior to correct this error. 
C)  Distomesial projection of the central ray caused the error. Shift the tube toward the anterior to correct this error. 
D)  Distomesial projection of the central ray caused the error. Shift the tube toward the posterior to correct this error. 
A)  Mesiodistal projection of the central ray caused the error. Shift the tube toward the anterior to correct this error. 
B)  Mesiodistal projection of the central ray caused the error. Shift the tube toward the posterior to correct this error. 
C)  Distomesial projection of the central ray caused the error. Shift the tube toward the anterior to correct this error. 
D)  Distomesial projection of the central ray caused the error. Shift the tube toward the posterior to correct this error.

Question 5

When using the paralleling technique, excessive vertical angulation will result in:

Accepted Answer

A)  elongation of the teeth. 
B)  foreshortening of the teeth. 
C)  cutting off the apices of teeth. 
D)  cutting off the occlusal/incisal edges of the teeth. 
A)  elongation of the teeth. 
B)  foreshortening of the teeth. 
C)  cutting off the apices of teeth. 
D)  cutting off the occlusal/incisal edges of the teeth.

Question 6

Which of the following statements regarding positioning of the image receptor is correct?

Accepted Answer

A)  Absence of apical structures results when the image receptor is not placed low enough in the oral cavity. 
B)  Inadequate horizontal angulation will result in less of the crown recorded. 
C)  Excessive vertical angulation will result in overlap error. 
D)  Not placing the image receptor parallel with the occlusal plane results in cone cutting. 
A)  Absence of apical structures results when the image receptor is not placed low enough in the oral cavity. 
B)  Inadequate horizontal angulation will result in less of the crown recorded. 
C)  Excessive vertical angulation will result in overlap error. 
D)  Not placing the image receptor parallel with the occlusal plane results in cone cutting.

Question 7

What causes an iridescent stain on the radiograph?

Accepted Answer

Oxidation and exhaustion of th

Question 8

A light radiograph can result from either underexposure or underdeveloping.

Accepted Answer

A) True 
 B)False

Question 9

An image receptor placed too far back in the mouth will result in not imaging the:

Accepted Answer

A)  maxillary structures. 
B)  mandibular structures. 
C)  anterior structures. 
D)  posterior structures. 
A)  maxillary structures. 
B)  mandibular structures. 
C)  anterior structures. 
D)  posterior structures.

Question 10

A scratched safelight filter or incorrect bulb wattage can result in film fog.

Accepted Answer

A) True 
 B)False

Question 11

A slanted or tilted occlusal plane results from which of the following?

Accepted Answer

A)  Not using a cotton roll to stabilize the image receptor holder 
B)  Not positioning the edge of the image receptor parallel to the occlusal plane 
C)  Orienting the image receptor vertically when it should have been oriented horizontally 
D)  Placing the image receptor in the mouth backward 
A)  Not using a cotton roll to stabilize the image receptor holder 
B)  Not positioning the edge of the image receptor parallel to the occlusal plane 
C)  Orienting the image receptor vertically when it should have been oriented horizontally 
D)  Placing the image receptor in the mouth backward

Question 12

What term is used to describe images other than anatomy or pathology that do not contribute to a diagnosis of the patient's condition?

Accepted Answer

A)  Artifacts 
B)  Cone cuts 
C)  Double images 
D)  Pressure marks 
A)  Artifacts 
B)  Cone cuts 
C)  Double images 
D)  Pressure marks

Question 13

Failing to record the apical region of the teeth on a periapical radiograph most likely results from an error made in which of the following steps?

Accepted Answer

A)  Placement of the image receptor 
B)  Horizontal angulation 
C)  Vertical angulation 
D)  Centering the x-ray beam 
A)  Placement of the image receptor 
B)  Horizontal angulation 
C)  Vertical angulation 
D)  Centering the x-ray beam

Question 14

Does radiographic film have an expiration date?

Accepted Answer

Yes. The e

Question 15

A black film indicates accidental exposure to white light.

Accepted Answer

A) True 
 B)False

Question 16

Formation of a partial image on the radiograph occurs if the developing solution is too weak.

Accepted Answer

A) True 
 B)False

Question 17

Failing to record the incisal or occlusal edges of the teeth on a periapical radiograph most likely results from an error made in which of the following steps?

Accepted Answer

A)  Placement of the image receptor 
B)  Horizontal angulation 
C)  Vertical angulation 
D)  Centering the x-ray beam 
A)  Placement of the image receptor 
B)  Horizontal angulation 
C)  Vertical angulation 
D)  Centering the x-ray beam

Question 18

Elongation error results from which of the following?

Accepted Answer

A)  Excessive vertical angulation using the bisecting technique 
B)  Excessive vertical angulation using the paralleling technique 
C)  Inadequate vertical angulation using the bisecting technique 
D)  Inadequate vertical angulation using the paralleling technique 
A)  Excessive vertical angulation using the bisecting technique 
B)  Excessive vertical angulation using the paralleling technique 
C)  Inadequate vertical angulation using the bisecting technique 
D)  Inadequate vertical angulation using the paralleling technique

Question 19

Assembling an image receptor holder with external aiming device incorrectly may lead to conecut error.

Accepted Answer

A) True 
 B)False

Question 20

What conditions permit white-light film fog?

Accepted Answer

A white-light leak in the darkroom that

Exam 18: Identifying and Correcting Undiagnostic Radiographs

A dark image occurs when the developing solution is diluted.

When using film, the corrective action for a radiograph that displays a "tire track" pattern is to:

The image receptor should be placed with the long dimension horizontal for exposure of anterior periapical radiographs.

Which of the following identifies the cause and corrective action for an image with overlapping of the proximal contacts in which the overlap appears more severe in the posterior region than the anterior region?

When using the paralleling technique, excessive vertical angulation will result in:

Which of the following statements regarding positioning of the image receptor is correct?

What causes an iridescent stain on the radiograph?

A light radiograph can result from either underexposure or underdeveloping.

An image receptor placed too far back in the mouth will result in not imaging the:

A scratched safelight filter or incorrect bulb wattage can result in film fog.

A slanted or tilted occlusal plane results from which of the following?

What term is used to describe images other than anatomy or pathology that do not contribute to a diagnosis of the patient's condition?

Failing to record the apical region of the teeth on a periapical radiograph most likely results from an error made in which of the following steps?

Does radiographic film have an expiration date?

A black film indicates accidental exposure to white light.

Formation of a partial image on the radiograph occurs if the developing solution is too weak.

Failing to record the incisal or occlusal edges of the teeth on a periapical radiograph most likely results from an error made in which of the following steps?

Elongation error results from which of the following?

Assembling an image receptor holder with external aiming device incorrectly may lead to conecut error.

What conditions permit white-light film fog?

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

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