Radiology #1

1. When using a phosphor plate, if we tak eimage without deetion of previous one is called

2. What is the effect on radiograph if there are scratches on intensifying screen

3. A 21-year-old woman went to her dentist because of facial asymmetry. This asymmetry had developed gradually over 3 years. The patient had no symptoms. A diffusely opaque lesion was found in her right maxilla. All laboratory tests (complete blood count, alkaline phosphatase, calcium) were within normal limits. A biopsy specimen was interpreted as a fibro-osseous lesion. This patient most likely has ______.

4. Which property of x-ray is utilised in intensifying screens

5. What is the "critical target" for radiation damage

6. the most common cause of light radiographs is

7. Machine A has FOV(field of view) of 6-12 inches,while machine B has FOV of 1.6 to 3.1 inches. Which CBCT machine will produce higher resolution image and deliver less radiation

8. which of the following restorative material is the most radiolucent

9. reversal lines are characteristic on the radiograph of

10. which type of radiation effect results in radiation induced thyroid cancer

11. ossifying fibroma manifest as

12. gamma camera in nuclear medicine is used for

13. the x ray beam is filtered to

14. radiographic diagnosis of dense radioopaque cotton wool areas throughout the entire body of the mandible and associated with hypercementosis is most likely

15. which of the following is not done as an investigation in osteosarcoma

16. First radiographic sign of osteomyelitis

17. zygomatic arch fractures are best seen in

18. Most radiosensitive phase of cell cycle is

19. campbell lines are seen in which radiographic projection

20. the heel effect results