Question 1

The recommended vertical angulation for exposing a mandibular canine periapical radiograph using the bisecting technique is:

Accepted Answer

A)  -10 degrees 
B)  -15 degrees 
C)  -20 degrees 
D)  -5 degrees 
A)  -10 degrees 
B)  -15 degrees 
C)  -20 degrees 
D)  -5 degrees

Question 2

The bisecting technique is applied when the image receptor cannot be placed parallel to the long axes of the teeth.

Accepted Answer

A) True 
 B)False

Question 3

The goal of accurate bisecting technique is to direct the central ray of the x-ray beam perpendicular to both the long axes of the teeth and the plane of the image receptor simultaneously.

Accepted Answer

A) True 
 B)False

Question 4

To determine the vertical angulation when using the bisecting technique, the central rays of the x-ray beam should be directed:

Accepted Answer

A)  perpendicular to the image receptor. 
B)  parallel to the image receptor. 
C)  perpendicular to the imaginary bisector. 
D)  parallel to the imaginary bisector. 
A)  perpendicular to the image receptor. 
B)  parallel to the image receptor. 
C)  perpendicular to the imaginary bisector. 
D)  parallel to the imaginary bisector.

Question 5

Excessive vertical angulation when using the bisecting technique will elongate the image.

Accepted Answer

A) True 
 B)False

Question 6

It is possible to place the image receptor close to the maxillary anterior teeth and still achieve a parallel relationship between the image receptor and the long axes of the teeth.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following statements regarding image receptor holders is FALSE?

Accepted Answer

A)  Short bite blocks should be used for the bisecting technique. 
B)  External aiming devices help locate correct angles and points of entry. 
C)  External aiming devices eliminate the need to position the patient's head precisely. 
D)  Bite blocks with an L-shaped back plate should be used with the bisecting technique. 
A)  Short bite blocks should be used for the bisecting technique. 
B)  External aiming devices help locate correct angles and points of entry. 
C)  External aiming devices eliminate the need to position the patient's head precisely. 
D)  Bite blocks with an L-shaped back plate should be used with the bisecting technique.

Question 8

Which of these is NOT a disadvantage of the bisecting technique?

Accepted Answer

A)  It produces images with dimension distortion. 
B)  Image receptor positioning is difficult for patients with small mouths. 
C)  Adjacent structures are often superimposed. 
D)  Estimating the location of the imaginary bisecting may be difficult. 
A)  It produces images with dimension distortion. 
B)  Image receptor positioning is difficult for patients with small mouths. 
C)  Adjacent structures are often superimposed. 
D)  Estimating the location of the imaginary bisecting may be difficult.

Question 9

The two planes that can be visualized by the radiographer are the estimated long axis of the tooth and the plane of the image receptor.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following statements regarding patient preparation for dental radiography is NOT correct?

Accepted Answer

A)  The patient should be protected with a lead/lead-equivalent apron and thyroid collar. 
B)  The patient's occipital protuberance should be against the headrest during exposure. 
C)  The patient's eyeglasses may be left in place to protect the eyes. 
D)  Objects in the mouth such as dentures, partials, and retainers should be removed prior to exposure. 
A)  The patient should be protected with a lead/lead-equivalent apron and thyroid collar. 
B)  The patient's occipital protuberance should be against the headrest during exposure. 
C)  The patient's eyeglasses may be left in place to protect the eyes. 
D)  Objects in the mouth such as dentures, partials, and retainers should be removed prior to exposure.

Question 11

Why is it important for the radiographer to know how to apply both the paralleling and bisecting techniques?

Accepted Answer

The radiographer who possesses knowledge

Question 12

The recommended vertical angulation for exposing a maxillary premolar periapical radiograph using the bisecting technique is:

Accepted Answer

A)  +20 degrees 
B)  +30 degrees 
C)  +40 degrees 
D)  +45 degrees 
A)  +20 degrees 
B)  +30 degrees 
C)  +40 degrees 
D)  +45 degrees

Question 13

Which of the following is true of the bisecting technique?

Accepted Answer

A)  It is easy to standardize subsequent films. 
B)  There is increased patient comfort during image receptor placement. 
C)  There is decreased radiation exposure for the patient. 
D)  It is less likely to cause image distortion. 
A)  It is easy to standardize subsequent films. 
B)  There is increased patient comfort during image receptor placement. 
C)  There is decreased radiation exposure for the patient. 
D)  It is less likely to cause image distortion.

Question 14

To avoid conecut error when using the bisecting technique, the point of entry should be the occlusal plane of the teeth.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following will correct an elongated image?

Accepted Answer

A)  Increasing the vertical angulation 
B)  Decreasing the vertical angulation 
C)  Directing the central ray perpendicular to the plane of the image receptor 
D)  Directing the central ray perpendicular to the long axis of the tooth 
A)  Increasing the vertical angulation 
B)  Decreasing the vertical angulation 
C)  Directing the central ray perpendicular to the plane of the image receptor 
D)  Directing the central ray perpendicular to the long axis of the tooth

Question 16

When using the bisecting technique, the patient should bite down on the image receptor bite block as close to the teeth as necessary.

Accepted Answer

A) True 
 B)False

Question 17

When using the bisecting technique, because the long axis of the tooth and the plane of the image receptor are not parallel, a shorter target-image receptor distance will increase magnification and distortion.

Accepted Answer

A) True 
 B)False

Question 18

The horizontal angulation is determined in the same manner for both the bisecting and the paralleling techniques.

Accepted Answer

A) True 
 B)False

Question 19

To determine accurate and correct angles and points of entry, how should the patient be positioned?

Accepted Answer

The occlusal plane should be p

Question 20

How does the central ray of the x-ray beam intersect with the image receptor and the teeth of interest when using the bisecting technique?

Accepted Answer

The central ray of the x-ray b

Exam 15: The Bitewing Examination

The recommended vertical angulation for exposing a mandibular canine periapical radiograph using the bisecting technique is:

The bisecting technique is applied when the image receptor cannot be placed parallel to the long axes of the teeth.

The goal of accurate bisecting technique is to direct the central ray of the x-ray beam perpendicular to both the long axes of the teeth and the plane of the image receptor simultaneously.

To determine the vertical angulation when using the bisecting technique, the central rays of the x-ray beam should be directed:

Excessive vertical angulation when using the bisecting technique will elongate the image.

It is possible to place the image receptor close to the maxillary anterior teeth and still achieve a parallel relationship between the image receptor and the long axes of the teeth.

Which of the following statements regarding image receptor holders is FALSE?

Which of these is NOT a disadvantage of the bisecting technique?

The two planes that can be visualized by the radiographer are the estimated long axis of the tooth and the plane of the image receptor.

Which of the following statements regarding patient preparation for dental radiography is NOT correct?

Why is it important for the radiographer to know how to apply both the paralleling and bisecting techniques?

The recommended vertical angulation for exposing a maxillary premolar periapical radiograph using the bisecting technique is:

Which of the following is true of the bisecting technique?

To avoid conecut error when using the bisecting technique, the point of entry should be the occlusal plane of the teeth.

Which of the following will correct an elongated image?

When using the bisecting technique, the patient should bite down on the image receptor bite block as close to the teeth as necessary.

When using the bisecting technique, because the long axis of the tooth and the plane of the image receptor are not parallel, a shorter target-image receptor distance will increase magnification and distortion.

The horizontal angulation is determined in the same manner for both the bisecting and the paralleling techniques.

To determine accurate and correct angles and points of entry, how should the patient be positioned?

How does the central ray of the x-ray beam intersect with the image receptor and the teeth of interest when using the bisecting technique?

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 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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