Question 1

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 2

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.E) None of the above
F) A) and B)

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

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 5

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 toothE) None of the above
F) C) and D)

Question 6

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 7

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.E) None of the above
F) C) and D)

Question 8

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.E) A) and D)
F) B) and C)

Question 9

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.E) C) and D)
F) A) and C)

Question 10

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...

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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 13

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.E) A) and B)
F) A) and C)

Question 14

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 degreesE) B) and D)
F) A) and B)

Question 15

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 16

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 degreesE) None of the above
F) B) and D)

Question 17

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 18

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 19

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 20

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

Exam 15: The Bitewing Examination

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

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following will correct an elongated image?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedThe radiographer who possesses knowledge...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is true of the bisecting technique?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedThe occlusal plane should be p...View AnswerShow Answer

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?

Correct AnswerverifiedThe central ray of the x-ray b...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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The radiographer who possesses knowledge...
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The occlusal plane should be p...
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The central ray of the x-ray b...
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