Dental Radiography principals and Techniques 5th edition by Joen Iannucci
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
| 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
| 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
| 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
| 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
| 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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