MDS PREP
Reflecting layer used in intensifying screens
1. Calcium tungstate
2. Titanium oxide & magnesium carbonate
3. Gaddinium oxysulphide
4. Lanthanum oxybromide
Radiology
Answer: 2
The reflecting layer used in intensifying screens is titanium oxide & magnesium carbonate.
Brown discolouration seen in old radiographic films is due to
1. Overdevelopment
2. Underdevelopment
3. Incomplete fixation
4. Exposure to light
Radiology
Answer: 3
Brown discoloration seen in old radiographic films is due to incomplete fixation.
If multiple myeloma is suspected in a patient"s history and intraoral radiograph, which of the following radiographs should be taken to confirm the diagnosis
1. Lateral skull
2. Anterior-posterior view
3. Lateral oblique
4. Posterior-anterior view
If multiple myeloma is suspected, a lateral skull radiograph should be taken to confirm the diagnosis.
Lateral skull view is used for viewing all of the following except
1. Medial wall and root of orbit
2. Nasal bone
3. Nasal septum
4. Calvarium and root of sinus
Radiology
Answer: 3
Lateral skull view is used for viewing all of the following except nasal septum.
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.
For detection of pathology in both Stenson"s and Wharton"s duct after sialogram, indicated radiographic view is
1. PA view
2. Caldwell
3. Panoramic
4. CT scan
Radiology
Answer: 3
For detection of pathology in both Stenson's and Wharton's duct after sialogram, the indicated radiographic view is panoramic.
Dead bone appears on a radiograph as
1. Radiolucent
2. Radiopaque
3. Cotton wool appearance
4. Salt and pepper appearance
Radiology
Answer: 2
Dead bone appears on a radiograph as radiopaque.
Best X-ray for mesiodens is
1. Occlusal
2. PA view
3. Panorex
4. Bitewing
Radiology
Answer: 1
The best X-ray for mesiodens is occlusal.