A 60-year-old male reports for denture adjustment. His OPG show 1 cm lytic area in the lower bicuspid region. The most probable diagnosis is 1) Residual cyst 2) Hyperparathyroidism 3) CA prostate 4) Any one of the above
RadiologyAnswer: 4
Primary source of X-ray photons from an X-ray tube is 1) Stray radiation 2) Bremhaulstrong radiation 3) Characteristic radiation 4) All of the above
RadiologyAnswer: 2
The most radioresestant organ is 1. Cartilage 2. Gonads 3. Lungs 4. Lymphoid
RadiologyAnswer: 1
A patient requires tooth extraction from an area that has been subjected to radiation therapy. Which of the following represents the greatest danger to this patient 1) Alveolar osteitis 2) Osteoradionecrosis 3) Prolonged healing 4) Fracture of the mandible
RadiologyAnswer: 2
Mean exposure at skin from an intraoral periapical radiographs 1) 300 mR 2) 0.03 mR 3) 47 mR 4) Both A and B
RadiologyAnswer: 4
At 80 kVp and 15 mA and target film distance of 8 cm, exposure time is 8 seconds. The exposure time at 4 cm is 1) 4 seconds 2) 2 seconds 3) 1 second 4) 1/4 second
RadiologyAnswer: 2
Radiation injury to the haemopoietic system of the bone marrow occurs when the whole body exposure ranges between 1) 50-100 rads 2) 200-1000 rads 3) 1000-5000 rads 4) 10,000 rads to more
RadiologyAnswer: 2
Lateral cephalogram is used for all of the following except 1) To assess where excessive growth is occuring 2) To compare the growth patterns with previous radiograph 3) To assess level of posterior alveolar bone 4) To assess soft tissue profile
