Question 1

The dental assistant exposing a periapical film sensor using the paralleling technique should always start with the:

Accepted Answer

A)  anterior teeth.
B)  molars.
C)  upper teeth.
D)  lower teeth.E) A) and D)
F) B) and C)

Question 2

Vertical angulation:

Accepted Answer

A)  differs according to the technique being used.
B)  refers to the up-and-down plane.
C)  can be determined in degrees marked on the outside of the tubehead.
D)  is all of the above.E) C) and D)
F) All of the above D

Question 3

A radiographic mount should always be labeled with the:

Accepted Answer

A)  patient's name.
B)  operator's name.
C)  patient's name and the date the images were exposed.
D)  patient's name and the date the images were processed.E) All of the above
F) B) and D)

Question 4

Which technique can be used in situations such as a small mouth,shallow palate,or the presence of tori?

Accepted Answer

A)  Paralleling technique
B)  Bitewing technique
C)  Bisecting technique
D)  Long-cone techniqueE) A) and C)
F) B) and C)

Question 5

If the central ray of the x-ray beam is not centered on the film sensor,a partial image will result on the film sensor,which is called a(n) :

Accepted Answer

A)  cone cut.
B)  herringbone image.
C)  blurred image.
D)  elongated image.E) A) and C)
F) A) and D)

Question 6

When mounting radiographs,it is important to:

Accepted Answer

A)  know the anatomy of the maxilla and mandible.
B)  mount the films in the order of the teeth.
C)  label the mount with the patient's name and date before mounting the films.
D)  do all of the above.E) A) and D)
F) B) and D)

Question 7

When using an x-ray sensor,it is important to always:

Accepted Answer

A)  place a cotton roll between the sensor and the teeth being x-rayed to protect the sensor.
B)  use the bisecting technique.
C)  place the sensor parallel to the incisal or occlusal edge of the teeth.
D)  make sure the sensor is against the teeth being radiographed.E) A) and B)
F) None of the above

Question 8

Angulation of the PID is critical to ensure that the central ray is perpendicular to the bisector line in which of the following techniques?

Accepted Answer

A)  Long-cone
B)  Bisecting
C)  Bitewing
D)  Both b and cE) A) and B)
F) A) and D)

Question 9

To minimize image distortion,the:

Accepted Answer

A)  film must be positioned perpendicular to the long axis of the tooth.
B)  film must be positioned parallel to the long axis of the tooth.
C)  central ray of the x-ray beam must be directed parallel to the film.
D)  central ray of the x-ray beam must be directed parallel to the long axis of the tooth.E) A) and B)
F) A) and C)

Question 10

The alignment of the x-ray beam in the horizontal and vertical planes formed by the long axis of the teeth and the film sensor placement is referred to as:

Accepted Answer

A)  angulation.
B)  interproximal.
C)  paralleling.
D)  perpendicular.E) B) and D)
F) None of the above A

Question 11

When taking periapical images,it is best to start with anterior images because:

Accepted Answer

A)  they are easier on the operator to take.
B)  patients are less likely to gag with anterior film sensor placement.
C)  patients can tolerate the film sensor size easier.
D)  of both b and cE) A) and C)
F) A) and B)

Question 12

To correct an elongated image on an x-ray view,the vertical angulation needs to be:

Accepted Answer

A)  increased.
B)  decreased.
C)  lowered.
D)  flattened.E) A) and B)
F) None of the above

Question 13

Occlusal radiographs can be used for:

Accepted Answer

A)  detecting decay.
B)  checking bone levels between the teeth.
C)  locating unerupted teeth.
D)  checking for infections at the apex of the teeth.E) B) and C)
F) A) and D)

Question 14

The bitewing view is used for detecting:

Accepted Answer

A)  abscessed teeth.
B)  periodontal disease.
C)  interproximal decay.
D)  both b and cE) A) and B)
F) A) and C) D

Question 15

What is the usual number of posterior film sensor images taken in the parallel technique?

Accepted Answer

A)  2
B)  4
C)  6
D)  8E) B) and D)
F) A) and D)

Question 16

Horizontal angulation is:

Accepted Answer

A)  the side-to-side angulation.
B)  different when using the paralleling and bisecting techniques.
C)  correct when the central ray is parallel to the curvature of the arch.
D)  determined by the Stabe bite-block.E) A) and B)
F) A) and C)

Question 17

Periapical radiographs are essential in which dental specialty?

Accepted Answer

A)  Pediatric dentistry
B)  Endodontics
C)  Oral surgery
D)  Both b and cE) B) and C)
F) A) and B)

Question 18

The major difference between the paralleling technique and the bisecting technique is film sensor:

Accepted Answer

A)  placement.
B)  size.
C)  speed.
D)  None of the above is correct.E) C) and D)
F) A) and B)

Question 19

According to the guidelines for film placement,which of the following is true?

Accepted Answer

A)  The colored side of the film always faces the teeth.
B)  Anterior films are always placed horizontally.
C)  Posterior periapical films are always placed vertically.
D)  The identification dot on the film is always placed in the slot of the film holder.E) A) and B)
F) A) and C)

Question 20

Because of the curvature of the arch,a total of _____ bitewing views are taken on an adult patient.

Accepted Answer

A)  two
B)  four
C)  six
D)  eightE) B) and C)
F) A) and D)

Exam 41: Intraoral Imaging

The dental assistant exposing a periapical film sensor using the paralleling technique should always start with the:

Correct AnswerverifiedShow Answer

Vertical angulation:

Correct AnswerverifiedD

A radiographic mount should always be labeled with the:

Correct AnswerverifiedShow Answer

Which technique can be used in situations such as a small mouth,shallow palate,or the presence of tori?

Correct AnswerverifiedShow Answer

If the central ray of the x-ray beam is not centered on the film sensor,a partial image will result on the film sensor,which is called a(n) :

Correct AnswerverifiedShow Answer

When mounting radiographs,it is important to:

Correct AnswerverifiedShow Answer

When using an x-ray sensor,it is important to always:

Correct AnswerverifiedShow Answer

Angulation of the PID is critical to ensure that the central ray is perpendicular to the bisector line in which of the following techniques?

Correct AnswerverifiedShow Answer

To minimize image distortion,the:

Correct AnswerverifiedShow Answer

The alignment of the x-ray beam in the horizontal and vertical planes formed by the long axis of the teeth and the film sensor placement is referred to as:

Correct AnswerverifiedA

When taking periapical images,it is best to start with anterior images because:

Correct AnswerverifiedShow Answer

To correct an elongated image on an x-ray view,the vertical angulation needs to be:

Correct AnswerverifiedShow Answer

Occlusal radiographs can be used for:

Correct AnswerverifiedShow Answer

The bitewing view is used for detecting:

Correct AnswerverifiedD

What is the usual number of posterior film sensor images taken in the parallel technique?

Correct AnswerverifiedShow Answer

Horizontal angulation is:

Correct AnswerverifiedShow Answer

Periapical radiographs are essential in which dental specialty?

Correct AnswerverifiedShow Answer

The major difference between the paralleling technique and the bisecting technique is film sensor:

Correct AnswerverifiedShow Answer

According to the guidelines for film placement,which of the following is true?

Correct AnswerverifiedShow Answer

Because of the curvature of the arch,a total of _____ bitewing views are taken on an adult patient.

Correct AnswerverifiedShow Answer

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D

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A

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D

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