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Exam (elaborations)

DANB RADIOLOGY EXAM PRACTICE QUESTIONS AND ANSWERS

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  • Course
  • Dental Radiology
  • Institution
  • Dental Radiology

DANB RADIOLOGY EXAM PRACTICE QUESTIONS AND ANSWERS 3 film holding devices used for bisecting - Answer️️ -dentsply rinn stabe, rinn BAI, dental SUPA 3 film holding devices used for paralleling - Answer️️ -dentsply rinn XCP-DS, Rinn XCP, flow dental RAPD a patient complains of pain in t...

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  • August 27, 2024
  • 31
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Dental Radiology
  • Dental Radiology
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SophiaBennett
©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM


DANB RADIOLOGY EXAM PRACTICE
QUESTIONS AND ANSWERS

3 film holding devices used for bisecting - Answer✔️✔️-dentsply rinn stabe,
rinn BAI, dental SUPA

3 film holding devices used for paralleling - Answer✔️✔️-dentsply rinn
XCP-DS, Rinn XCP, flow dental RAPD

a patient complains of pain in the upper molar region. What radiographic
exposure should be made? - Answer✔️✔️-periapical

a properly exposed film appears completely black. when was it exposed to
white light? - Answer✔️✔️-before it was processed

According to the principles of shadow casting, preferred object, film
distances - Answer✔️✔️-As close as possible to

According to principles of shadow casting, how should the central beam be
directed? - Answer✔️✔️-Perpendicular to the tooth and film

According to the principles of shadow casting, how should the film be
placed in relation to the tooth? - Answer✔️✔️-parallel

According to principles of shadow casting what is the preferred source
object distance? - Answer✔️✔️-As far as practical

After processing exposed dental film, you noticed dark spots on the film.
What caused this? - Answer✔️✔️-Premature contact with the developer



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,©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM

An insurance company request a patient's radiographs when examining a
dental claim you only have one copy of the radiographs. what should you
duplicate and which should go to the insurance company? - Answer✔️✔️-
Duplicate, which will go to the insurance company.

The office keeps the best copy

Desired thickness of lead apron - Answer✔️✔️-.25 mm

Difference between direct and indirect exposure sensor - Answer✔️✔️--
Direct means directly obtaining a digital image by exposing intraoral
sensor to x-rays to provide an image that can be viewed on a computer.

-indirect is photostimuble phosphor plate sensor technology, obtaining a
digital image in which an exposed phosphor plate is placed into a scanner
and then converted into a digital image.

Explain PSP - Answer✔️✔️--Photostimuable Phosphor Plate aka storage
phosphor system

-indirect digital imaging

-captures analog data then processed in a laser scanning device

-light is then converted into electrical signal that the computer uses to
create the digital image

Films submerged, totally in fixer but not in developer. What will it look
like? - Answer✔️✔️-The part that was fixed, but not developer would be
clear




2

,©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM

How are indirect exposure films exposed - Answer✔️✔️-X-rays hit phosphor
screen creating fluorescent light that exposes the film

How are stable film holders cleaned between use - Answer✔️✔️-Sterilize
film holder devices or discard disposable image receptor holding devices

How are x-rays formed in the tube head - Answer✔️✔️-Turn on the machine,
adjust settings, press exposure button, filament heats up/ thermionic
emission, electron cloud is formed, electrons flow from cathode to anode,
electrons strike target, energy is converted into x-rays and heat

How can exposure to the operator be reduced? - Answer✔️✔️-move farther
from the radiation

How can you differentiate the zygoma from the maxillary sinus in a
maxillary posterior PA? - Answer✔️✔️-- The maxillary sinus appears as
three sided pyramid

- The zygoma appears a J-shaped

How do you determine how often to take radiographs - Answer✔️✔️-
evidence based selection criteria

How do you differentiate between maxillary and mandibular molars when
mounting? - Answer✔️✔️-- you differentiate them by how many roots are in
the molars

- Maxillary have roots and mandibular have two roots




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, ©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM

How does exposure time differ between adults and children? - Answer✔️✔️-
The exposure time is cut by 1/3

How does exposure time for children compare to that of an adult -
Answer✔️✔️-1/3-1/2

How does exposure time for edentulous patients compare to dentulous
patients? - Answer✔️✔️-1/5 exposure time for edentulous

How does film speed correlate with definition and detail? - Answer✔️✔️-
faster film = lower definition and detail

How does kVp affect patient exposure - Answer✔️✔️-Higher kVp= low
pressure

How does packet placement differ between bisecting and paralleling? -
Answer✔️✔️--bisecting - packet is as close to tooth as possible, but not
parallel



-parallel - packet is parallel to tooth, further away

How does radiation affect cells? - Answer✔️✔️-It causes damage to living
cells. Ionization.

How does reducing exposure to the patient benefit the operator? -
Answer✔️✔️-The less the patient is exposed, the less the operator is exposed




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