MDS PREP
Density of radiograph is independent of
1) Milliamperage
2) Target-film distance
3) Kilovoltage
4) Focal-spot
Radiology
Answer: 4
For detection of herniation and perforation of fibrous disc of TMJ that is best indicated is
1) Transcranial view
2) CT scan
3) MRI
4) Arthrography
Radiology
Answer: 4
The anatomical radiolucent area in maxillary posterior periapical area may be confused as pathological condition is
1) Maxillary sinus
2) Coronoid process
3) Infraorbital foramen
4) Sphenoid sinus
Radiology
Answer: 1
The vertical angle for making bitewing radiographs is
1) Zero degree
2) Adjusted for the curve of Space
3) Approximately Five degree upward
4) Approximately Five degree downward
Radiology
Answer: 4
Double intensifying screen and screen film are used in extraoral radiographs to
1) Reduce density
2) Reduce contrast
3) Reduce exposure time
4) Reduce secondary radiation
Radiology
Answer: 3
Image sharpness on a radiograph is increased by
1. Increasing the film speed
2. Increasing the object filem
3. Using a small focal spot size
4. Using a large focal spot size
Radiology
Answer: 3
Which of the following statements is false
1. "Unsafe" dark room lights cause fogging of films
2. Alveolar resorption is easily recognized on X-ray
3. Decreasing focal skin distance increases radiation safety factor
4. None of the above