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;
15 Cards in this Set
- Front
- Back
|
For which of these purposes are extraoral radiographs least suitable? |
Detection of interproximal caries |
|
|
Which of these radiographs is most frequently prescribed by the orthodontist? |
Lateral cephalometric |
|
|
The general practitioner is most likely to use which of these extraoral radiograph? |
Panoramic |
|
|
Which of these radiographs would best image the maxillary sinus? |
Waters |
|
|
What size film is generally used to produce a cephalometric radiograph? |
8x10 in. (20 x 25 cm) |
|
|
Black artifacts on extraoral radiographs may result from each of the following EXCEPT one. Which one is the EXCEPTION? |
Scratched intensifying screens |
|
|
Intensifying screens will |
Reduce exposure time. |
|
|
What term describes the crystals used in the emulsion of intensifying screens? |
Phosphors |
|
|
Fast intensifying screens have _________ sized crystals and ______________ thickness of emulsion. |
Large; increased |
|
|
Rare-earth intensifying screens require less radiation to produce a quality image. Rare-earth intensifying screens emit blue light when energized by x-radiation. |
The first statement is correct. The second statement is incorrect. |
|
|
Which of these is NOT a way to identify extraoral radiographs? |
Embossed identification dot |
|
|
Unsharp (blurry) images result from which of the following? |
All of the above: Film and screens not in close contact Faulty (not tight) hinge on rigid cassette Not closing the cassette tightly
|
|
|
Which of the following is used to help reduce film fog during exposure of extraoral radiographs? |
Grid |
|
|
Which of the following is true regarding tomography when compared to extraoral radiography? |
Utilizes a moving x-ray source and moving image receptor. |
|
|
Cone beam computed tomography plays a valuable role in which of the following? |
All of the above: Assessing growth and development of the orthodontic patient Imaging the height and contour of edentulous ridges Treatment planning for dental implants |
