Most sensitive phase in cell division to radiation is 1) G1 phase 2) Mitotic rate of cells 3) G2 phase 4) None of the above
RadiologyAnswer: 3
If shorter exposure time is needed for exposing dental firm 1) kVp can be increased 2) Mili ampere is decreased 3) Long cone can be used 4) Lead diaphragm is removed
RadiologyAnswer: 1
Irregular radiolucent area related to apex of a non-vital teeth could ve 1. Chronic PA abscess 2. PA cyst 3. PA granuloma 4. Early osteomyelitis
RadiologyAnswer: 1
Which of the following has a radiolucency closest to the dentin 1) ZOE 2) Calcium hydroxide 3) Silicophosphate 4) Gutta percha
RadiologyAnswer: 3
If the size of object is 20 cm, object-film distance is 5 cm and source-film distance is 25 cm, what is the size of object on film 1) 20 cm only 2) 21 cm only 3) 25 cm only 4) 22 cm only
RadiologyAnswer: 3
One advantage of digital radiography is 1) All the teeth can be in a single film 2) Highly economical 3) The radiographic images are obtained immediately 4) None of the above
RadiologyAnswer: 3
Apical root fracture is visible in 1) Intraoral periapical X-ray 2) Bitewing X-ray 3) Occlusal X-ray 4) OPG
RadiologyAnswer: 1
Occluded submandibular salivary duct can be best observed by 1) Palpation 2) Sialography 3) Occlusal X-ray 4) Thermography
