Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Which of the following may be helpful for proper positioning of the skull in a lateral view?
a. Place a foam pad under the ramus of the mandible. b. Pull the front limbs caudally. c. Place a pad under the caudodorsal cervical region. d. THe mandibular ramus closest to the cassette should be slightly ventral to the ramus furthest from the cassette. |
a
|
|
|
What is the disadvantage of a more prominent externa occipital protuberence?
a. It may cause the head to rotate in a ventrodorsal view. b. It may cause the head to rotate in a lateral view. c. It may cause the head to rotate in a dorsoventral view. d. It requires kVp to be increased. |
a
|
|
|
Where should the beam be centered for a rostrocaudal view of the frontal sinuses?
a. Through the center of the frontal sinuses. b. Over the point of the nose. c. At the symphysis of the rami d. At the top of the head. |
a
|
|
|
What is the apporpriate angle and direction of the x-ray tube in a ventrodorsal open-mouth view of the nasal cavity?
a. 15 to 20 degrees directed inside the mouth. b. 10 to 15 degrees directed at the top of the frontal sinuses. c. 10 to 15 degrees directed inside the mouth. d. 20 to 25 degrees directed inside the mouth. |
c
|
|
|
Which views are most helpful to view the typamic bullae?
a. Rostrocaudal open-mouthed lateral. b. Rostrocaudal open-mouth lateral oblique. c. Lateral oblique, ventrodorsal open-mouth. d. Ventrodorsal open-mouth, rostrocaudal open-mouth. |
b
|
|
|
What is the appropriate degree of rotation of the head for a ventrodorsal oblique view of the temporomandibular joint?
a. App. 20 degrees. b. App/ 15 degrees. c. App. 25 degrees. d. App. 10 degrees. |
a
|
|
|
Why is the source-image distance decreased in a dorsoventral view of the maxilla?
a. THe film is in the Bucky tray. b. The head is elevated off the table. c. The film is on the tabletop. d. The film is in the mouth of the tabletop. |
d
|
|
|
Where is the beam centered for the open-mouth ventrodorsal view of the upper dental arcade?
a. Over the third premolar. b. At the commissure of the lips. c. Over the canine tooth. d. Over the first premolar. |
a
|
|
|
Because even the slightest rotation of the skill can lead to a wrong diagnosis:
a. it is often necessary to use tape to secure the skill. b. general anesthesia helps to maintain symmetry. c. it is best if several radiographers assist with manual restraint. d. Both a and b are correct. |
d
|
|
|
Where is the film placed for a lateral intraoral view of the teeth?
a. Against the lateral border of the maxilla or manidble behind the affected tooth with the unaffected side on the table. b. Against the medial border of the maxilla or mandible behind the affected tooth with the unaffected side of the table. c. Against the medial border of the maxilla or mandible behind the affected tooth with the affected side on the table. d. None of the above. |
b
|
