MDS PREP
All of the following are radiolucent except
1. Osteomalacia
2. Osteopetrosis
3. Ameloblastoma
4. Central giant cell granuloma
Radiology
Answer: 2
All of the following are radiolucent except osteopetrosis.
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
Double intensifying screen and screen film are used in extraoral radiographs to reduce exposure time.
Zonography is a type of
1. CT scan
2. Radionuclide imaging
3. Panoramography
4. MRT
Radiology
Answer: 3
Zonography is a type of panoramography.
A thin radioopaque line running around the curvature of root in IOPA is
1. Lamina dura
2. Lamina propria
3. Lamina limitans
4. Lamina densa
Radiology
Answer: 1
A thin radiopaque line running around the curvature of the root in IOPA is lamina dura.
Which of the following related to a radiograph with the image that has many gradations of gray from totally white to completely black
1. Underexposed
2. Overexposed
3. Long-scale contrast
4. Short-scale contrast
Radiology
Answer: 3
A radiograph with many gradations of gray from totally white to completely black is related to long-scale contrast.
Size of the focal spot influences radiographic
1. Definition
2. Density
3. Contrast
4. All of the above
Radiology
Answer: 1
The size of the focal spot influences radiographic definition.
Ghost like shadow seen in
1. MRI
2. OPG
3. CT
4. Cephalogram
A ghost-like shadow is seen in an OPG.
To localize a supernumerary or an impacted tooth and determine its exact relationship to the other teeth, which of the following radiographs would be most effective?
1. A periapical and an occlusal view
2. An occlusal view using a high angle
3. A panoramic radiograph
4. Two or more periapical views at different angles and an occlusal view
Radiology
Answer: 4
To localize a supernumerary or an impacted tooth and determine its exact relationship to the other teeth, the most effective radiographs would be two or more periapical views at different angles and an occlusal view.