Question 1

The contacts on your dental image are overlapped,which of the following would you correct when retaking the image?

Accepted Answer

A)  Horizontal angulation
B)  Vertical angulation
C)  Head position
D)  Receptor placement A

Question 2

According to the text,when exposing a complete mouth image series (CMS)using the bisecting technique,there are ____ recommended size 2 periapical receptor placements.

Accepted Answer

A)  7
B)  12
C)  14
D)  19 C

Question 3

You are using the Rinn Stabe Bite-bloc to take a dental image of teeth numbers 23-26.What vertical angulation should you set the PID at to get the proper image?

Accepted Answer

A)  -20 to -30 degrees
B)  -15 to -25 degrees
C)  +40 to +50 degrees
D)  There is no need to set the vertical angulation. B

Question 4

With the ____________ technique,the vertical angulation is determined by the imaginary bisector;the central ray is directed perpendicular to the imaginary bisector.

Accepted Answer

A)  paralleling
B)  bisecting
C)  bite-wing
D)  occlusal

Question 5

The recommended posterior periapical exposure sequence for the bisecting technique is to begin with the

Accepted Answer

A)  maxillary right quadrant.
B)  maxillary left quadrant.
C)  mandibular right quadrant.
D)  mandibular left quadrant.

Question 6

Which size receptor is traditionally used with the bisecting technique?

Accepted Answer

A)  #1 receptor for anterior teeth,#1 receptor for posterior teeth
B)  #1 receptor for anterior teeth,#2 receptor for posterior teeth
C)  #2 receptor for anterior teeth,#1 receptor for posterior teeth
D)  #2 receptor for anterior teeth and for posterior teeth

Question 7

Elongated images refer to images of the teeth that appear __________.Elongation of images results from _____________ vertical angulation.

Accepted Answer

A)  too long;excessive
B)  too long;insufficient
C)  shortened;excessive
D)  shortened;insufficient

Question 8

When the bisecting technique is used,foreshortening will occur if the central ray is directed perpendicular to the

Accepted Answer

A)  plane of the receptor.
B)  imaginary bisector.
C)  long axis of the tooth on the same arch.
D)  long axis of the tooth on the opposite arch.

Question 9

(1)When using the bisecting technique,the receptor holder or the patient's finger may be used to stabilize the receptor.(2)A beam alignment device is used to stabilize the receptor and to align the position-indicating device (PID).

Accepted Answer

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 10

The primary disadvantage of the bisecting technique when contrasted with the paralleling technique is

Accepted Answer

A)  longer exposure times.
B)  dimensional distortion.
C)  requirement of a receptor holder.
D)  greater magnification.

Question 11

You are using the Rinn Snap-A-Ray to take a dental image of tooth #13.What vertical angulation should you set the PID at to get a dental image that is the same length as the tooth?

Accepted Answer

A)  -10 to -15 degrees
B)  + 20 to +30 degrees
C)  +30 to +40 degrees
D)  There is no need to set the vertical angulation.

Question 12

You are using the Rinn BAI System to take a dental image of tooth number 1.What vertical angulation should you set the PID at to get the proper image?

Accepted Answer

A)  -5 to 0 degrees
B)  +20 to +30 degrees
C)  +30 to +40 degrees
D)  There is no need to set the vertical angulation.

Question 13

When the bisecting technique is used,the receptor must be placed along the ________ surface of the tooth.

Accepted Answer

A)  buccal
B)  lingual
C)  mesial
D)  distal

Question 14

The teeth on your dental images appear shorter than your patient's teeth,which of the following would you correct when retaking the dental image?

Accepted Answer

A)  Increase horizontal angulation
B)  Increase vertical angulation
C)  Decrease vertical angulation
D)  Decrease horizontal angulation

Question 15

Your premolar image is undiagnostic,the mesial half of the dental image is radiopaque.You are missing the canine and first premolar,and the distal edge of the radiopaque area is curved.Which of the following will you adjust to correct this error for the retake?

Accepted Answer

A)  Receptor position
B)  Vertical angulation
C)  Horizontal angulation
D)  Receptor exposure

Question 16

According to the text,when exposing the anterior teeth using the bisecting technique,there are ________ recommended size 2 periapical receptor placements.

Accepted Answer

A)  four
B)  six
C)  seven
D)  eight

Question 17

The primary benefit of using a collimator on a Rinn BAI instrument with the bisecting technique is

Accepted Answer

A)  assisting in determining vertical angulation.
B)  helping to minimize cone cuts.
C)  reducing the patient's exposure to radiation.
D)  allowing the operator to have the receptor parallel to the long axis of the tooth.

Question 18

With the bisecting technique,the recommended vertical angulation range for tooth number 6 is _________ degrees.

Accepted Answer

A)  +20 to +30
B)  +30 to +40
C)  +40 to +50
D)  +45 to +55

Question 19

Which of the following commercially available receptor holders are recommended for use with both the paralleling and the bisecting techniques?
1)Rinn XCP instruments
2)Rinn BAI instruments
3)Precision receptor holder
4)Stabe bite-block
5)Snap-A-Ray receptor holder

Accepted Answer

A)  1,2,3,4,5
B)  2,3,4,5
C)  3,4,5
D)  2,4,5

Question 20

Foreshortened images refer to images of the teeth that appear _________.Foreshortening of images results from ___________ vertical angulation.

Accepted Answer

A)  shortened;insufficient
B)  shortened;excessive
C)  too long;insufficient
D)  too long;excessive

Exam 18: Bisecting Technique