DANB RADIOLOGY EXAM | QUESTIONS & 100% VERIFIEDANSWERS | LATEST UPDATE | PASSED

DANB RADIOLOGY EXAM | QUESTIONS & 100% VERIFIEDANSWERS | LATEST UPDATE | PASSED The most common cause of excess patient exposure is Correct Answer: operator technique error The primary use of bitewing radiographs is for evaluation of Correct Answer: caries The reason for taking radiographs is Correct Answer: for diagnosis If the tubehead drifts, you should Correct Answer: have the equipment fixed prior to taking any radiographs The most damaging time for radiation exposure to the fetus is Correct Answer: first trimester All of the following help protect the patient from radiation EXCEPT: a) E-speed film 2 b) lead apron c) collimation d) lead-lined walls Correct Answer: d) lead-lined walls (because they protect the operator, not patient) The advantage of the parallel technique is Correct Answer: less distortion All of the following are an advantage of digital radiography EXCEPT: a) faster image acquisition than traditional radiography b) reduction in patient radiation dose c) sensors are easier to place in a small mouth d) image on the computer can be adjusted in size or darkness Correct Answer: c) sensors are easier to place in a small mouth Overlap on a BW is caused by Correct Answer: horizontal angle error To see the whole tooth and its associated structures, the best radiograph is Correct Answer: a periapical film To correct an elongated image on a maxillary film, what should be done? Correct Answer: vertical angle should be increased 3 When taking a film with the bisect technique, if the central ray is directed perpendicular to the long axis of the tooth, the image will be Correct Answer: elongated A patient refuses to take radiographs - you should... Correct Answer: notify the dentist The best way to ensure asepsis of the radiology control panel is Correct Answer: use a plastic wrap or barrier When mounting radiographs, the difference between a maxillary molar and mandibular molar PA would be Correct Answer: maxillary molar films show the sinus'