NBDHE-Radiology Questions and Answers Already Passed
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Course
NBDHE-Radiology
Institution
NBDHE-Radiology
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...
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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