NDAEB Exam Prep Questions Answers (300 Questions & Complete Solutions)

NDAEB Exam Prep Questions Answers (300 Questions & Complete Solutions) NDAEB Exam Prep Questions Answers (300 Questions & Complete Solutions) What two basic methods are used to acquire a digital x-ray image? - ANSWER - Direct imaging(sensor) & indirect imaging (PSP) Advantages of Digital Radiography - ANSWER - 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 - ANSWER - Cost, converting previous records to digital, learning the computer software, thickness and rigidity of sensors, infection control What is intraoral film composed of? - ANSWER - 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? - ANSWER - The image on the film that is not yet visible because it has not been processed. What does 'film speed' refer to? - ANSWER - 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? - ANSWER - True What is the fastest film speed currently available? - ANSWER - 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? - ANSWER - Intraoral film, extraoral film, and duplicating film. When does a "Herringbone" pattern occur on dental film? - ANSWER - When it is placed in the mouth backwards. What are the 5 basic sizes that intraoral film comes in? - ANSWER - Child Size: 0 Narrow Anterior: 1 Adult Size: 2 Preformed bitewing: 3 (infrequently used) Occlusal: 4 What are two common extraoral radiographs taken? - ANSWER - Panoramic and Cephalometric.