Deck 17: Paralleling Technique

Question 1

When tori are present:

A) The patient will require a panoramic film.
B) The film should be placed on the torus and exposed.
C) The patient should be referred for surgical tori reduction before films are taken.
D) The film must be placed on the far side of the torus.

Answer 1

The film must be placed on the far side of the torus.

Question 2

According to the basic principles of the paralleling technique, the film is placed in the mouth ____ to the long axis of the tooth being radiographed, and the central ray of the x-ray beam is directed ____ to the film and long axis of the tooth.

A) Parallel; perpendicular
B) Parallel; parallel
C) Perpendicular; parallel
D) Perpendicular; perpendicular

Answer 2

Parallel; perpendicular

Question 3

____ posterior film placements are used in the paralleling technique.

A) Four
B) Six
C) Seven
D) Eight

Answer 3

Eight

Question 4

The recommended posterior periapical sequence for the Rinn XCP instruments starts with the:

A) Maxillary left quadrant.
B) Maxillary right quadrant.
C) Mandibular left quadrant.
D) Mandibular right quadrant.

Question 5

Reusable film holders must be ____ after each use.

A) Rinsed with tap water
B) Wiped with disinfectant
C) Placed in an immersion disinfectant
D) Sterilized

Question 6

If the patient has a shallow palate, a lack of parallelism of greater than ____ degrees requires a modification in technique.

A) 10
B) 20
C) 30
D) 45

Question 7

Which of the following film holders include aiming rings that aid in the alignment of the position-indicating device (PID) with the film?

A) Hemostat with bite-block
B) Stabe bite-block
C) EEZEE-Grip film holder
D) Rinn XCP instruments

Question 8

An increased ____ distance results in increased image magnification.

A) Target-object
B) Object-film
C) Target-film
D) Operator-patient

Question 9

When the patient has a shallow palate requiring a modification in technique:

A) Two cotton rolls can be placed, one on each side of the bite-block.
B) The patient can be asked to tilt the head to one side.
C) The vertical angulation can be increased by 5 to 15 degrees more than the XCP instrument indicates.
D) Both a and c.

Question 10

According to the text, size 1 film is always positioned with the long portion of the film in a ____ direction, and size 2 film is always positioned with the long portion of the film in a ____ direction.

A) Vertical; vertical
B) Horizontal; horizontal
C) Vertical; horizontal
D) Horizontal; vertical

Question 11

Anterior film placements are less likely to cause the patient to gag. Once the gag reflex is stimulated, the patient may gag on films that could normally be tolerated.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second statement is false.
D) The first statement is false; the second statement is true.

Question 12

The authors recommend using size ____ film for anterior teeth and size ____ film for posterior teeth.

A) 1; 1
B) 2; 2
C) 1; 2
D) 2; 1

Question 13

Parallel is defined as:

A) To cut across or through.
B) Intersecting at or forming a right angle.
C) Moving or lying in the same plane, always separated by the same distance and not intersecting.
D) An angle of 90 degrees formed by two lines perpendicular to each other.

Question 14

With size 1 film, a total of ____ anterior film placements are used in the paralleling technique.

A) Four
B) Six
C) Seven
D) Eight

Question 15

The authors recommend an exposure sequence starting with tooth No.:

A) 6
B) 8
C) 9
D) 11

Question 16

Which of the following is a disposable film holder designed for one-time use only?

A) Rinn XCP instruments
B) Precision film holders
C) Stabe bite-block
D) EEZEE-Grip film holder

Question 17

With size 2 film, a total of ____ anterior film placements are used with the paralleling technique.

A) Four
B) Six
C) Seven
D) Eight

Question 18

An increased ____ distance can compensate for image magnification.

A) Target-object
B) Object-film
C) Target-film
D) Operator-patient

Question 19

To achieve parallelism between the film and the tooth, the ____ distance must be increased to keep the film parallel with the long axis of the tooth.

A) Target-object
B) Object-film
C) Target-film
D) Operator-patient

Question 20

The second quadrant in the recommended posterior periapical sequence for the Rinn XCP instruments is the:

A) Maxillary left quadrant.
B) Maxillary right quadrant.
C) Mandibular left quadrant.
D) Mandibular right quadrant.

Question 21

The paralleling technique ____ on fixed vertical angulations and produces a radiographic image ____ dimensional distortion.

A) Does not rely; without
B) Relies; without
C) Does not rely; with
D) Relies; Without

Question 22

When placing films in the mandibular premolar region, the film must be placed ____ the tongue. When inserting the film holder into the mouth, the film is tipped ____ the tongue.

A) over; toward
B) over; away from
C) under; toward
D) under; away from

Question 23

The lingual cusp of the first premolar usually obscures the distal contact of the canine on the ____ exposure.

A) Maxillary canine
B) Maxillary incisor
C) Mandibular canine
D) Mandibular incisor

Question 24

The authors recommend that each film be placed in the bite-block with the dot:

A) Down.
B) Up.
C) Distal.
D) In the slot.

Question 25

All crowns and roots of the first, second, and third molars, including the apices, alveolar crests, contact areas, surrounding bone, and tuberosity region, must be seen on the ____ radiograph.

A) Maxillary premolar
B) Maxillary molar
C) Mandibular premolar
D) Mandibular molar

Question 26

The entire crowns and roots of one lateral and one central incisor, including the apices of the teeth and surrounding structures, must be seen on the ____ radiograph.

A) Maxillary canine
B) Maxillary incisor
C) Mandibular canine
D) Mandibular incisor