Dental Radiography principals and Techniques 5th edition by Joen Iannucci
Dental Radiography principals and Techniques 5th edition by Joen Iannucci
$2.99
Chapter 23: Extraoral Imaging
Complete Chapter Questions With Answers
Sample Questions Are Posted Below
MULTIPLE CHOICE
| a. | outside; small |
| b. | outside; large |
| c. | inside; small |
| d. | inside; large |
ANS: B
An extraoral image is placed outside the mouth during x-ray exposure. Extraoral imaging is used to image large areas of the skull or jaws.
DIF: Recall REF: Page 256 OBJ: 2
TOP: CDA, RHS, I.B.1.b.i. Define factors that influence quality of the radiographic image
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
A thyroid collar is not used for extraoral projections.
DIF: Comprehension REF: Page 265 OBJ: 4
TOP: CDA, RHS, I.B.1.b.i. Define factors that influence quality of the radiographic image
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: A
Temporomandibular joint tomography is used to evaluate the condyle, articular eminence, and glenoid fossa. TMJ tomography is a technique used to show structures located within a selected plane of tissue while blurring structures outside the selected plane.
DIF: Comprehension REF: Page 271 OBJ: 5
TOP: CDA, RHS, I.B.1.b.i. Define factors that influence quality of the radiographic image
MSC: NBDHE, 2.3 Technique
| a. | Gutta percha placement in the root canal |
| b. | Level of crestal bone |
| c. | Recurrent decay |
| d. | Growth and development |
ANS: D
The intraoral image is used to evaluate gutta percha root canal fillings; the integrity of the crest of alveolar bone; recurrent decay. The extraoral image is typically used to evaluate growth and development.
DIF: Application REF: Page 256 OBJ: 2
TOP: CDA, RHS, I.B.1.b.i. Define factors that influence quality of the radiographic image
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: A
Extraoral images may be used in conjunction with intraoral images. Extraoral images are not as defined or sharp as intraoral images.
DIF: Recall REF: Page 256 OBJ: 2
TOP: CDA, RHS, I.B.1.b.i. Define factors that influence quality of the radiographic image
MSC: NBDHE, 2.3 Technique
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