DENTAL RADIATION SAFETY EXAM
QUESTIONS & DETAILED ANSWERS 2025
What does PID refer to?
- answer-Position Indicator Device- cylinder or cone part of xray machine aligned
with the film during exposure
Density refers to
- answer-Overall blackness of the film
Periapical image allows the following images to be visualized
- answer-Crown, Root, supporting tissue for the tooth
Bitewing image allows the following images to be visualized
- answer-Crown, proximal area, interproximal area
Full-mouth survey including bitewing consists of how many films?
- answer-20
When taking a radiographic survey, it is best to start with
- answer-Molars
Patients should wear the lead apron
- answer-All of the time
Which of the following does not effect film density?
- answer-
when taking bitewing radiographs on the premolars, you should have a PID
reading of +5 degrees vertical angle
- answer-True
Children's exposure time is often reduced by
- answer-
, ALARA Rule stands for
- answer-As low as reasonable achievable
The aluminum filter
- answer-Removes low energy rays/ absorbs low energy rays
The collimater
- answer-Limits the primary beam
the kV setting controls the quantity of xrays
- answer-true
When finished taking xrays, the lead apron should be folded and put away
- answer-
Increase current mA creates
- answer-
Molar projections require more or less exposure time then premolar projections
- answer-more exposure time
contrast is mostly effected by the kV setting
- answer-true
E speed film requires more radiation to achieve good density
- answer-false
poor contrast of dental x-rays can result from
- answer-chemicals, out of date film, scatter radiation
increased kVp creates higher contrast and greater absorption of xrays by the patient
- answer-false
when taking maxillary projections the occlusal plane should be parallel to the floor
- answer-true
the white side of the film packet should be placed against the back support on the
holder
- answer-false
QUESTIONS & DETAILED ANSWERS 2025
What does PID refer to?
- answer-Position Indicator Device- cylinder or cone part of xray machine aligned
with the film during exposure
Density refers to
- answer-Overall blackness of the film
Periapical image allows the following images to be visualized
- answer-Crown, Root, supporting tissue for the tooth
Bitewing image allows the following images to be visualized
- answer-Crown, proximal area, interproximal area
Full-mouth survey including bitewing consists of how many films?
- answer-20
When taking a radiographic survey, it is best to start with
- answer-Molars
Patients should wear the lead apron
- answer-All of the time
Which of the following does not effect film density?
- answer-
when taking bitewing radiographs on the premolars, you should have a PID
reading of +5 degrees vertical angle
- answer-True
Children's exposure time is often reduced by
- answer-
, ALARA Rule stands for
- answer-As low as reasonable achievable
The aluminum filter
- answer-Removes low energy rays/ absorbs low energy rays
The collimater
- answer-Limits the primary beam
the kV setting controls the quantity of xrays
- answer-true
When finished taking xrays, the lead apron should be folded and put away
- answer-
Increase current mA creates
- answer-
Molar projections require more or less exposure time then premolar projections
- answer-more exposure time
contrast is mostly effected by the kV setting
- answer-true
E speed film requires more radiation to achieve good density
- answer-false
poor contrast of dental x-rays can result from
- answer-chemicals, out of date film, scatter radiation
increased kVp creates higher contrast and greater absorption of xrays by the patient
- answer-false
when taking maxillary projections the occlusal plane should be parallel to the floor
- answer-true
the white side of the film packet should be placed against the back support on the
holder
- answer-false
