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Ready Study Set for RDA (Dentistry) Exam Questions and Accurate Answers Rated A.
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Ready Study Set for RDA (Dentistry) Exam Questions and Accurate Answers Rated A.
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Ready Study Set for RDA (Dentistry)Exam Questions and Accurate Answers
Rated A.
Damage caused by ionizing x-radiation to genetic cells:
a- affects only the person being exposed
b- can affect future generations
c- affects only the dental assistant
d- affects the cells of the eye, skin, and oral mucosa
Correct Answer -b- can affect future generations
All of the following are true statements about storage plates used with
(PSP) except:
a- they are made of phosphor
b- the latent image will stay on the plate for hours
c- they should not be exposed to the light before scanning
d- they are disposable
Correct Answer -d- they are disposable
When film emulsion interacts with x-rays, the result is:
a- a visible distortion
b- a distorted light source
c- a latent image
d- none of the above
Correct Answer -c- a latent image
,When in storage, the lead apron should be:
a- hung
b- folded
c- draped over a bar
d- both a and c
Correct Answer -d- both a and c
The location where x-rays are produced in the x-ray tube is called the:
a- focal spot
b- filament
c- window
d- PID
Correct Answer -b- filament
The penetrating power of the x-ray beam is controlled by the setting on
the:
a- impulse timer
b- kilovolt setting
c- milliamp setting
d- all of the above
Correct Answer -d- all of the above
Dental film holders, used to position and hold the dental x-ray films in
the patient's mouth, include:
,a- PID
b- XCP and disposable block
c- EeZee-grip and EndoRay
d- both b and c
Correct Answer -d- both b and c
The CBCT is useful in helping the dentist:
a- decide the correct placement of implants
b- with extractions of impacted teeth
c- determine the exact location of the mandibular nerve before surgery
d- all of the above
Correct Answer -d- all of the above
The radiographic image is located within the ____ of the radiographic
film
a- acetate film base
b- adhesive layer that attaches the emulsion to the film base
c- gelatin that suspends the emulsion
d- protective layer that protects the emulsion surface
Correct Answer -c- gelatin that suspends the emulsion
In the paralleling technique, the central ray of the x-ray beam must be
_______ to the film sensor and the long axis of the tooth.
, a- intersecting
b- inter proximal
c- parallel
d- perpendicular
Correct Answer -d- perpendicular
How much filtration is federally required for a dental x-ray machine
operating over 70 kVp?
a- 2.75 mm
b-2.50 mm
c-2.25 mm
d- 0.5 mm
Correct Answer -b- 2.50 mm
If the patient is in a wheelchair, does not have the use of his or her upper
limbs, and a film sensor holder cannot be used to stabilize the film
sensor, you should:
a-ask the patient's caregiver to assist in holding the film sensor
b- hold the film sensor in the patient's mouth while you press the
exposure button
c- hold the film sensor in the patient's mouth and ask the caregiver to
press the exposure button
d- do NONE of the above
Correct Answer -d- do none of the above
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