Chapter 18: Bisecting Technique

Dental Radiography principals and Techniques 5th edition by Joen Iannucci

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Chapter 18: Bisecting Technique

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

  1. The rule of isometry states that two triangles are equal if they have ______ equal angle(s) and share a common side.
a. one
b. two
c. three
d. four

 

 

ANS:  B

The rule of isometry states that two triangles are equal if they have two equal angles and share a common side.

 

DIF:    Recall             REF:   Page 176        OBJ:   1 | 2

TOP:   CDA, RHS, I.B.1.b.ii. Compare paralleling and bisecting angle techniques, including advantages and disadvantages            MSC:  NBDHE, 2.3 Technique

 

  1. When the bisecting technique is used, the receptor must be placed along the ________ surface of the tooth.
a. buccal
b. lingual
c. mesial
d. distal

 

 

ANS:  B

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

 

DIF:    Recall             REF:   Page 176        OBJ:   2 | 3

TOP:   CDA, RHS, I.B.1.b.ii. Compare paralleling and bisecting angle techniques, including advantages and disadvantages            MSC:  NBDHE, 2.3 Technique

 

  1. When the bisecting technique is used, which of the following angles is bisected?
a. The angle formed by the receptor and the long axis of the tooth
b. The angle formed by the central ray and the tooth
c. The angle formed by the central ray and the receptor
d. The angle that is perpendicular to the receptor

 

 

ANS:  A

The angle formed by the receptor and the long axis of the tooth is the angle that is bisected when the bisecting technique is used.

 

DIF:    Comprehension                               REF:   Page 176        OBJ:   2

TOP:   CDA, RHS, I.B.1.b.ii. Compare paralleling and bisecting angle techniques, including advantages and disadvantages            MSC:  NBDHE, 2.3 Technique

 

  1. When the bisecting technique is used, the central ray is directed at 90 degrees to the
a. receptor.
b. long axis of the tooth in the same arch.
c. long axis of the tooth in the opposing arch.
d. imaginary bisector.

 

 

ANS:  D

When the bisecting technique is used, the central ray is directed at 90 degrees to the imaginary bisector.

 

DIF:    Comprehension                               REF:   Page 176        OBJ:   2

TOP:   CDA, RHS, I.B.1.b.ii. Compare paralleling and bisecting angle techniques, including advantages and disadvantages            MSC:  NBDHE, 2.3 Technique

 

  1. (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).
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.

 

 

ANS:  D

When using the bisecting technique, a receptor holder may be used to stabilize the receptor. The patient’s finger should not be used. A beam alignment device is used to stabilize the receptor and to align the position-indicating device.

 

DIF:    Comprehension                               REF:   Page 178        OBJ:   4

TOP:   CDA, RHS, I.B.1.b.ii. Compare paralleling and bisecting angle techniques, including advantages and disadvantages            MSC:  NBDHE, 2.3 Technique

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