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NBDHE-Radiology Questions and Answers Already Passed What is the primary purpose of radiographs in dentistry? To diagnose and evaluate dental conditions and diseases What type of radiograph is typically used to assess the bone levels around teeth? Bitewing radiograph Which radiographi...

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  • September 10, 2024
  • 101
  • 2024/2025
  • Exam (elaborations)
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  • nbdhe radiology questions and answers already pass

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NBDHE-Radiology Questions and
Answers Already Passed
What is the primary purpose of radiographs in dentistry?


✔✔ To diagnose and evaluate dental conditions and diseases




What type of radiograph is typically used to assess the bone levels around teeth?


✔✔ Bitewing radiograph




Which radiographic technique is best for viewing the roots of the teeth and surrounding bone?


✔✔ Periapical radiograph




What is a common feature visible on radiographs that indicates tooth decay?


✔✔ Radiolucent areas or shadows on the tooth structure




What does a panoramic radiograph show?


✔✔ The entire dentition and the surrounding structures in a single image




1

,Which radiographic technique is often used for evaluating the temporomandibular joint (TMJ)?


✔✔ Transcranial radiograph




How can radiation exposure be minimized during dental radiography?


✔✔ Using lead aprons and thyroid collars, and selecting appropriate exposure settings




What is the term for the white or light areas on a radiograph that indicate dense structures?


✔✔ Radiopaque areas




Why are digital radiographs preferred over traditional film radiographs in modern practice?


✔✔ They offer quicker results, lower radiation doses, and easier storage and sharing




What is the term for the area of a radiograph that appears darker due to less dense structures?


✔✔ Radiolucent area




What is the significance of the grid in radiographic imaging?


✔✔ It helps reduce scatter radiation and improves image contrast




2

,What type of radiograph is used for detailed examination of the dental arches and the

relationship between the upper and lower jaws?


✔✔ Cephalometric radiograph




What does a radiopaque filling on a radiograph indicate?


✔✔ A material with high density, such as metal or amalgam




Which type of radiograph is used to view the full mouth including all the teeth and surrounding

bone?


✔✔ Full-mouth series (FMS) or complete series




What radiographic feature is commonly used to identify periodontal bone loss?


✔✔ Vertical bone loss on bitewing radiographs




What is the main advantage of using a collimator in radiography?


✔✔ It helps focus the X-ray beam to reduce patient exposure and improve image quality




What does the term "artifact" refer to in radiographic imaging?


3

, ✔✔ Any distortion or error on the image that is not related to the actual anatomy




How is the "cone cut" error typically avoided during radiographic exposure?


✔✔ Ensuring the X-ray beam is properly aligned with the film or sensor




What is the primary use of occlusal radiographs in dentistry?


✔✔ To view the relationship between the upper and lower jaws and to detect any abnormalities

in the occlusion




What type of radiograph is most useful for evaluating dental implants and their surrounding

bone?


✔✔ Periapical radiograph




Why is it important to position the patient’s head properly during radiographic imaging?


✔✔ To ensure accurate and diagnostic images are produced




What is the term for the dark or gray areas seen on a radiograph that indicate soft tissues or less

dense structures?



4

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