MDS PREP
Yellowish-brown staining of the IOPA dental X-ray film is due to
1) Immersion in fixer without washing
2) Increased temperature of developer
3) Increased exposure time
4) Drying away of the developer solution
Radiology
Answer: 1
Caries which can be best diagnosed on radiographs
1) Occlusal caries
2) Root surface caries
3) Interproximal caries
4) Surface caries on buccal surface
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
Most radioresistant cells are
1) Lymphocytes
2) Granulocytes
3) Muscle cells
4) Connective tissue cells
Radiology
Answer: 3
Loss of lamina dura and ground glass appearance indicates
1) Paget"s disease
2) Fibrous dysplasia
3) Caffey"s disease
4) Osteomalacia
Radiology
Answer: 2
Minimal dentinal destruction to get evident on the radiograph
1. 30 microns
2. 40 microns
3. 200 microns
4. 300 microns
Radiology
Answer: 2
X-rays were discovered in
1. Nov 1897
2. Oct 1985
3. Nov 1895
4. Nov 1890