MDS PREP
If shorter exposure time is needed for exposing dental firm
1. kVp can be increased
2. Mili ampere is decreased
3. Long cone can be used
4. Lead diaphragm is removed
Radiology
Answer: 1
If shorter exposure time is needed for exposing dental film, kVp can be increased.
Base of skull can be viewed by
1. Towne"s projection
2. Submentovertex
3. PA view of skull
4. Both A and B
Radiology
Answer: 4
The base of the skull can be viewed by both Towne's projection and Submentovertex.
Arthroscopy of TMJ is useful in
1. Internal derangement
2. Fracture of condyle
3. Ankylosis
4. Hyperplasia
Radiology
Answer: 1
Arthroscopy of TMJ is useful in internal derangement.
When evaluating intraoral periapical films which structures have improved sharpness
1. Lingual structures
2. Buccal structures
3. Interproximal structures
4. All of them equally
Radiology
Answer: 1
When evaluating intraoral periapical films, lingual structures have improved sharpness.
The bisecting angle technique is used to take
1. Bitewing radiographs
2. Periapical radiographs
3. True occlusal radiographs of the mandible
4. None of the above
Radiology
Answer: 2
The bisecting angle technique is used to take periapical radiographs.
Image of a hair appears on a radiograph which was exposed in a cassette. The hair would have been located in all of the following to produce this image except in
1. On the front of the cassette
2. Between film and front intensifying screen
3. Between film and back intensifying screen
4. On the film during development
Radiology
Answer: 4
Image of a hair appears on a radiograph which was exposed in a cassette. The hair would have been located in all of the following to produce this image except on the film during development.
Ghost like shadow seen in
1. MRI
2. OPG
3. CT
4. Cephalogram
A ghost-like shadow is seen in an OPG.
Grid is used in radiography to
1. Reduce kVp
2. Reduce exposure time
3. Reduce fogging
4. None of the above
Radiology
Answer: 3
Grid is used in radiography to reduce fogging.