Radiation-induced thyroid cancer is the result of which type of radiation 1) Somatic 2) Genetic 3) Teratogenic 4) All of the above
RadiologyAnswer: 1
An intraoral periapical X-ray is taken for evaluation of impacted third molar. Another X-ray is taken with downward angulation to first one. If third molar is lingual impaction it will appear to 1) Move downward in relation to inferior alveolar canal 2) Move upward in relation to inferior alveolar canal 3) Be stable in relation to inferior alveolar canal 4) None of the above
RadiologyAnswer: 1
Dead bone appears on a radiograph as 1) Radiolucent 2) Radiopaque 3) Cotton wool appearance 4) Salt and pepper appearance
RadiologyAnswer: 2
Radiographically mental foramen lies between the roots of 1) Canine and first premolar 2) First and second premolars 3) Second premolar and first molar 4) In the incisor region
RadiologyAnswer: 2
All of the following statements about an intraoral dental X-ray film are true except 1) It is composed of a cellulose acetate base coated with a silver bromide emulsion 2) It has a thin sheet of lead foil that lies in front of the film to prevent overexposure 3) It has an embossed dot on it which should be orientated towards the source of X-rays 4) It is exposed by the direct action of X-rays on the emulsion
RadiologyAnswer: 2
The best radiographic view for TMJ is 1) Lateral oblique 2) PA view 3) Waters view 4) OPG
RadiologyAnswer: 4
Name the lesion where cotton wool, multifocal radiodense conglomerates is not seen usually:
Image sharpness on a radiograph is increased by 1) Increasing the film speed 2) Increasing the object filem 3) Using a small focal spot size 4) Using a large focal spot size
