1. radiographic diagnosis of dense radioopaque cotton wool areas throughout the entire body of the mandible and associated with hypercementosis is most likelyenostosispaget's diseaseosteomyelitisexostosisQuestion 1 of 20 2. If a processed film appears light with herringbone or tire track pattern on it, which of the following is the likely cause?the film was bent during placementthe film was exposed twicethe patient moved during exposurethe film was reversed (placed backwards) during exposureQuestion 2 of 20 3. Floating teeth' are seen in which of the following conditions?OsteoporosisCleidocranial dysplasiaHistiocytosis XEhler danlos syndromeQuestion 3 of 20 4. On a routine radiographic examination, a well-defined radiolucent lesion was seen in the body of the mandible of a 17-year-old boy. At the time of operation, it proved to be an empty cavity. What is this lesion?Odontogenic keratocystOsteoporotic bone marrowTraumatic bone cystAneurysmal bone cystQuestion 4 of 20 5. Which property of x-ray is utilised in intensifying screensBiochemicalChemicalBiologicalPhysicalQuestion 5 of 20 6. On a radiograph, you observe a radiolucency extending from the distal aspect of the maxillary canine to the posterior wall of the maxilla above the tuberosity. The most likely cause of this radiolucency is ____.Zygomatic process of the maxillaDentigerous cystAmeloblastomaMaxillary sinusQuestion 6 of 20 7. The radiolucent portions of the images on a processed dental x-ray film are made up of ____.Microscopic grains of metallic silverMicroscopic grains of silver halideUnexposed silver bromideA gelatin on a cellulose acetate baseQuestion 7 of 20 8. the speed with which electrons travel from the filament of the cathode to the target of the anode depends upon thenumber of milliamperes in the tube circuitangle between the filament and the targetvoltage in the filament circuitpotential difference between the two electrodesQuestion 8 of 20 9. Best radiograph to view fracture of condyle isOPGReverse towne's viewSubmentovertexOccipitomental viewQuestion 9 of 20 10. It is important that the film base be ____.Completely clearopaque sensitive to XrayFlexibleQuestion 10 of 20 11. Mc gregor and trapnell lines are seen on aPA view skullSMVwater's viewtrue lateral viewQuestion 11 of 20 12. What is the "critical target" for radiation damageenzymeschromosomeslysosomesGolgi apparatusQuestion 12 of 20 13. which type of radiation effect results in radiation induced thyroid cancergeneticteratogenicsomaticautosomalQuestion 13 of 20 14. Which of the following focuses the electrons into a narrow beam and directs the beam across the tube towards tungsten target of the anodetungsten filamentmolybdenum cupcopper steminsulating oilQuestion 14 of 20 15. the density or the overall darkening of the radiograph depends on all exceptthe thickness of the objectthe quality and quantity of x raysthe cone angulationthe velocity of electrons emitted from the cathodeQuestion 15 of 20 16. If an exposed radiograph is too dark after proper development, you should ____.Decrease exposure timePlace it back in the fixerPlace it back in the developerDecrease development timeQuestion 16 of 20 17. Beaten metal appearance of skull from insideRicketsCrouzon syndromeApert syndromeMultiple myelomaQuestion 17 of 20 18. digital image in computerised radiography is made up ofsilver halide crystalspixelsCCDCMOSQuestion 18 of 20 19. Film size used to evaluate TMJ5*7 inch10*12 inch8*10 inch4*3 inchQuestion 19 of 20 20. All are advantages of digital radiography exceptPatient educationThe ability to enhance the imageDigital subtractionSize of the intraoral sensorQuestion 20 of 20 Loading...
