NDAEB Exam Prep || Questions and 100% Verified Answers.

What two basic methods are used to acquire a digital x-ray image? correct answers Direct imaging(sensor) & indirect imaging(PSP) Advantages of Digital Radiography correct answers Immediate viewing of images, less radiation, no chemicals, ability to enhance images, communication with other dentists, no more lost films, remote consultation capability Disadvantages of Digital Radiography correct answers Cost, converting previous records to digital, learning the computer software, thickness and rigidity of sensors, infection control What is intraoral film composed of? correct answers Film Base - Clear Cellulose Acetate Thin Adhesive Layer Silver Halide Crystals - absorb radiation A protective layer to protect the emulsion surface. What is a latent image? correct answers The image on the film that is not yet visible because it has not been processed. What does 'film speed' refer to? correct answers The amount of radiation that is required to produce a radiograph of standard density. True or false: The larger the silver halide crystals, the faster the film speed? correct answers True What is the fastest film speed currently available? correct answers F-Speed. (It reduces patient exposure to radiation by 20-60% compared to E or D speed film) What are the 3 types of x-ray film used in dental radiography? correct answers Intraoral film, extraoral film, and duplicating film. When does a "Herringbone" pattern occur on dental film? correct answers When it is placed in the mouth backwards. What are the 5 basic sizes that intraoral film comes in? correct answers Child Size: 0 Narrow Anterior: 1 Adult Size: 2 Preformed bitewing: 3 (infrequently used) Occlusal: 4 What are two common extraoral radiographs taken? correct answers Panoramic and Cephalometric.