MDS PREP
Best radiograph for viewing # of maxillary bone
1. Submentovertex
2. PA view
3. Waters view
4. Towne"s projection
Radiology
Answer: 3
The best radiograph for viewing the maxillary bone is Waters view.
Radiographic appearance of osteosarcoma is
1. Soap bubble appearance
2. Onion skin appearance
3. Cotton-wool appearance
4. Sun burst appearance
Radiology
Answer: 4
Radiographic appearance of osteosarcoma is sunburst appearance.
Loss of lamina dura and ground glass appearance of bone is an early radiographic feature of
1. Osteogenesis imperfecta
2. Hyperparathyroidism
3. Osteopetrosis
4. Osteitis deformans
Radiology
Answer: 2
Loss of lamina dura and ground glass appearance of bone is an early radiographic feature of hyperparathyroidism.
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.
The radiographic view that has to be avoided in patients with cervical spondylitis
1. PA view
2. Submentovertex
3. Towne"s view
4. Occipito mentalview
Radiology
Answer: 2
The radiographic view that has to be avoided in patients with cervical spondylitis is Submentovertex.
Film exposed to light during development will appear
1. Dark
2. Light
3. Clear
4. Blurred
Radiology
Answer: 1
When film is exposed to light during the development process, it results in overexposure, leading to a dark appearance on the developed film. This is due to the silver halide crystals being activated by light, which causes them to darken when developed.
In pantamograph, if patient places chin in front of focal trough, the structures appear to be
1. Blurred and magnified
2. Blurred and diminished
3. Either magnified or diminished
4. Only blurred
Radiology
Answer: 2
In a pantomograph, if the patient places their chin in front of the focal trough, the structures appear to be blurred and diminished.
The cathode in Coolidge tube is made of..............whereas anode is made of...............
1. Copper; copper
2. Molybdenum; copper
3. Iron; lead
4. Aluminium; iron
Radiology
Answer: 2
The cathode in a Coolidge tube is made of molybdenum, whereas the anode is made of copper.