SCDA Dental Radiation Safety Test Bank –
Complete Dental Radiography Practice
Questions with Verified Answers &
Explanations – Updated 2025/2026 Exam
Prep
Prepare for the SCDA Dental Radiation Safety certification with
this comprehensive test bank, featuring 100% verified practice
questions and detailed explanations. Covers dental radiography
principles, radiation physics, safety protocols, equipment handling,
patient protection, and regulatory compliance. Fully updated for
the 2025/2026 exam cycle, ideal for dental assistants, hygienists, and
professionals seeking SCDA certification.
, RADIATION SAFETY SCDA GIVEN
STUDY GUIDE
produce a photographyic image of dental fil which is made visible through processing
X rays
what can an X ray penetrate through?
skin, teeth, and bone
a photographyic record that can be seen on film that is produced by passing x rays through an
object or a body
radiograph
What are the three variable factors to consider in the proper setting of the controls on the x ray
machine?
kilovoltage, milliamperage, and time
the ability that x rays have to penetrate; affects the quality of radiographs produced
kilovoltage
,determines the number of x rays delivered (quanitity) from the x ray machine which are
available to strike the film; determines the darkness or lightness of the image produced
milliamperage and time
an aluminum disc placed within the x ray tubehead to remove the x rays that are not able to
reach the film; this device protects the patient by preventing thee non-penetrating rays from
stopping at the face
filters
a lead disc with a round or rectangular hole in the center that is manufactured into the end of
the dental cone; this limits the size of the x ray beam to the area that is requested by the doctor
collimator
long and lined with lead; recommended for modern dental radiography equipment
cones
the effect of radiation exposure to the reproductive cells causing alterations in genetic doe
which can possibly lead to mutations (changes) in offspring
, genetic effect
the effects of radiation exposure that are expressed in the exposed person rather than the
offspring i.e. cataracts, cancers
somatic effects
cells in the developing embryo, reproductive cells, and blood forming tissue cells.
sensitive cells
the most senstitive of all human tissue, especially during the first three months of pregnancy
the embryo
two sites near the oral cavity that are especially sensitive to radiation
thyroid gland and lens of the eye
who is the maximum permissible dose categorized for?
the general population, the occupational worker, and the pregnant woman
Complete Dental Radiography Practice
Questions with Verified Answers &
Explanations – Updated 2025/2026 Exam
Prep
Prepare for the SCDA Dental Radiation Safety certification with
this comprehensive test bank, featuring 100% verified practice
questions and detailed explanations. Covers dental radiography
principles, radiation physics, safety protocols, equipment handling,
patient protection, and regulatory compliance. Fully updated for
the 2025/2026 exam cycle, ideal for dental assistants, hygienists, and
professionals seeking SCDA certification.
, RADIATION SAFETY SCDA GIVEN
STUDY GUIDE
produce a photographyic image of dental fil which is made visible through processing
X rays
what can an X ray penetrate through?
skin, teeth, and bone
a photographyic record that can be seen on film that is produced by passing x rays through an
object or a body
radiograph
What are the three variable factors to consider in the proper setting of the controls on the x ray
machine?
kilovoltage, milliamperage, and time
the ability that x rays have to penetrate; affects the quality of radiographs produced
kilovoltage
,determines the number of x rays delivered (quanitity) from the x ray machine which are
available to strike the film; determines the darkness or lightness of the image produced
milliamperage and time
an aluminum disc placed within the x ray tubehead to remove the x rays that are not able to
reach the film; this device protects the patient by preventing thee non-penetrating rays from
stopping at the face
filters
a lead disc with a round or rectangular hole in the center that is manufactured into the end of
the dental cone; this limits the size of the x ray beam to the area that is requested by the doctor
collimator
long and lined with lead; recommended for modern dental radiography equipment
cones
the effect of radiation exposure to the reproductive cells causing alterations in genetic doe
which can possibly lead to mutations (changes) in offspring
, genetic effect
the effects of radiation exposure that are expressed in the exposed person rather than the
offspring i.e. cataracts, cancers
somatic effects
cells in the developing embryo, reproductive cells, and blood forming tissue cells.
sensitive cells
the most senstitive of all human tissue, especially during the first three months of pregnancy
the embryo
two sites near the oral cavity that are especially sensitive to radiation
thyroid gland and lens of the eye
who is the maximum permissible dose categorized for?
the general population, the occupational worker, and the pregnant woman
