Iowa Dental Board Radiography Exam
Questions And Answers Latest Update
2025
What two agencies oversee dental radiography? What is the
function of each with respect to dental radiography? -
correct answer ✅Iowa Department of Public Health: state
radiation control agency, inspects facilities;
Iowa Dental Board: ensures that dental assistants meet minimum
training standards; issues qualification in dental radiography
Under what conditions can a dental assistant take radiographs? -
correct answer ✅Assistant must have added qualified in dental
radiography or be on trainee status
Dentist must order the films
Dentist must provide supervision
Under what conditions can a dental assistant trainee take
radiographs? -
correct answer ✅Dentist must order films
Dentist must provide personal supervision of trainee
What three things are required to obtain radiography qualification
from the Board? -
correct answer ✅Course of study that includes clinical training,
examination, and an application with fee
,Iowa Dental Board Radiography Exam
Questions And Answers Latest Update
2025
When is the radiography qualification renewed? What are the
renewal requirements? -
correct answer ✅Renewed with registration is renewed - by
August 31 of odd-numbered years
What are the renewal requirements for dental radiography? -
correct answer ✅Renewal requires proof of 2 hours of continuing
education in dental radiography and renewal fee
Name two possible penalties for violating dental radiography
requirements. -
correct answer ✅Disciplinary action by the dental board
Criminal charges or civil action
A dentist should always prescribe radiographs every six months to
review a patient's dental condition. -
correct answer ✅False
A certified dental assistant does not need to obtain a separate
radiography qualification from the Board to take x-rays. -
correct answer ✅False
,Iowa Dental Board Radiography Exam
Questions And Answers Latest Update
2025
Dental assistant trainees can train in dental radiography during the
trainee period. -
correct answer ✅True
The Iowa Dental Board inspects dental radiography machines. -
correct answer ✅False
What are the parts of the control panel? What is the function of
each part? -
correct answer ✅Timer: controls how long electrons move-length
of exposure
mA setting: determines the number of electrons available
kVp setting: determines the force of electron movement
A source of electrons is needed to create x-rays. What else is
needed to create x-rays? -
correct answer ✅Motion to the electrons
Something to stop the electrons
What determines the number of electrons that will be used? -
correct answer ✅mA and time
, Iowa Dental Board Radiography Exam
Questions And Answers Latest Update
2025
What role does kinetic energy play in the creation of x-rays? -
correct answer ✅Electrons in motion possess kinetic energy;
Kinetic energy from electrons in motion is converted into heat and
x-rays when the electrons are stopped
What does the force of electron movement have to do with the x-
rays that are created? -
correct answer ✅Force of movement determines force of x-ray
The greater the movement force, the more powerful the x-rays
Which x-ray has more penetrating power, one that was created with
a kVp of 60 or an x-ray that was created with a kVp of 80? -
correct answer ✅80 kVp
What is the function of the PID? -
correct answer ✅Aim the central rays - used to aim the x-rays
If the patient moves during the exposure, which film quality is
affected? -
correct answer ✅Detail, aka definition
Questions And Answers Latest Update
2025
What two agencies oversee dental radiography? What is the
function of each with respect to dental radiography? -
correct answer ✅Iowa Department of Public Health: state
radiation control agency, inspects facilities;
Iowa Dental Board: ensures that dental assistants meet minimum
training standards; issues qualification in dental radiography
Under what conditions can a dental assistant take radiographs? -
correct answer ✅Assistant must have added qualified in dental
radiography or be on trainee status
Dentist must order the films
Dentist must provide supervision
Under what conditions can a dental assistant trainee take
radiographs? -
correct answer ✅Dentist must order films
Dentist must provide personal supervision of trainee
What three things are required to obtain radiography qualification
from the Board? -
correct answer ✅Course of study that includes clinical training,
examination, and an application with fee
,Iowa Dental Board Radiography Exam
Questions And Answers Latest Update
2025
When is the radiography qualification renewed? What are the
renewal requirements? -
correct answer ✅Renewed with registration is renewed - by
August 31 of odd-numbered years
What are the renewal requirements for dental radiography? -
correct answer ✅Renewal requires proof of 2 hours of continuing
education in dental radiography and renewal fee
Name two possible penalties for violating dental radiography
requirements. -
correct answer ✅Disciplinary action by the dental board
Criminal charges or civil action
A dentist should always prescribe radiographs every six months to
review a patient's dental condition. -
correct answer ✅False
A certified dental assistant does not need to obtain a separate
radiography qualification from the Board to take x-rays. -
correct answer ✅False
,Iowa Dental Board Radiography Exam
Questions And Answers Latest Update
2025
Dental assistant trainees can train in dental radiography during the
trainee period. -
correct answer ✅True
The Iowa Dental Board inspects dental radiography machines. -
correct answer ✅False
What are the parts of the control panel? What is the function of
each part? -
correct answer ✅Timer: controls how long electrons move-length
of exposure
mA setting: determines the number of electrons available
kVp setting: determines the force of electron movement
A source of electrons is needed to create x-rays. What else is
needed to create x-rays? -
correct answer ✅Motion to the electrons
Something to stop the electrons
What determines the number of electrons that will be used? -
correct answer ✅mA and time
, Iowa Dental Board Radiography Exam
Questions And Answers Latest Update
2025
What role does kinetic energy play in the creation of x-rays? -
correct answer ✅Electrons in motion possess kinetic energy;
Kinetic energy from electrons in motion is converted into heat and
x-rays when the electrons are stopped
What does the force of electron movement have to do with the x-
rays that are created? -
correct answer ✅Force of movement determines force of x-ray
The greater the movement force, the more powerful the x-rays
Which x-ray has more penetrating power, one that was created with
a kVp of 60 or an x-ray that was created with a kVp of 80? -
correct answer ✅80 kVp
What is the function of the PID? -
correct answer ✅Aim the central rays - used to aim the x-rays
If the patient moves during the exposure, which film quality is
affected? -
correct answer ✅Detail, aka definition
