Dental Radiology Certification Test
Questions and Answers Graded A+
What is the purpose of using a digital sensor in dental radiography?
✔✔To capture the X-ray image electronically, allowing for immediate processing, viewing, and
storage of the image.
What is the role of the control panel in dental X-ray systems?
✔✔To adjust the settings for exposure time, voltage, and other factors that affect the quality of
the radiographic image.
What is the advantage of using a digital radiographic system over traditional film-based systems?
✔✔It reduces radiation exposure, allows immediate image review, and enables easier storage
and retrieval of images.
Why is it important to use a film holder during dental radiographic procedures?
✔✔To stabilize the film or sensor and prevent movement, which ensures clear and accurate
images.
1
,How can radiographs aid in identifying impacted teeth?
✔✔They can reveal the position of teeth that are unable to emerge properly, assisting in
diagnosis and treatment planning.
What is the purpose of a full-mouth series (FMX) of radiographs in a dental examination?
✔✔To capture detailed images of all teeth and surrounding bone structures, providing a
comprehensive view for diagnosis and treatment planning.
Why is radiographic contrast important in dental imaging?
✔✔It allows for differentiation between various tissues, such as bone, teeth, and soft tissues,
helping to identify dental problems clearly.
What does "underexposure" mean in dental radiography?
✔✔It occurs when the exposure time or radiation dose is too low, resulting in a light or unclear
image.
What does the term "sharpness" refer to in dental radiographs?
✔✔It refers to the clarity of the image, with sharper images providing better detail for diagnosis.
2
, What is a periapical X-ray used for in dentistry?
✔✔To capture the entire tooth and surrounding bone, which helps in diagnosing infections,
fractures, or other dental issues.
Why should a lead apron be used during dental radiographic procedures?
✔✔To protect the patient’s body from unnecessary radiation exposure, especially to sensitive
areas like the thyroid and reproductive organs.
What does "radiolucent" mean in dental radiology?
✔✔It refers to areas that appear dark on the X-ray because they allow more X-rays to pass
through, like cavities or soft tissue.
What is the significance of kilovoltage (kVp) in dental radiography?
✔✔It controls the energy level of the X-ray beam, affecting the image contrast and penetration
ability.
Why is it important to ensure the X-ray beam is aligned properly?
✔✔To avoid distortion in the image and ensure that the area of interest is accurately captured.
3
Questions and Answers Graded A+
What is the purpose of using a digital sensor in dental radiography?
✔✔To capture the X-ray image electronically, allowing for immediate processing, viewing, and
storage of the image.
What is the role of the control panel in dental X-ray systems?
✔✔To adjust the settings for exposure time, voltage, and other factors that affect the quality of
the radiographic image.
What is the advantage of using a digital radiographic system over traditional film-based systems?
✔✔It reduces radiation exposure, allows immediate image review, and enables easier storage
and retrieval of images.
Why is it important to use a film holder during dental radiographic procedures?
✔✔To stabilize the film or sensor and prevent movement, which ensures clear and accurate
images.
1
,How can radiographs aid in identifying impacted teeth?
✔✔They can reveal the position of teeth that are unable to emerge properly, assisting in
diagnosis and treatment planning.
What is the purpose of a full-mouth series (FMX) of radiographs in a dental examination?
✔✔To capture detailed images of all teeth and surrounding bone structures, providing a
comprehensive view for diagnosis and treatment planning.
Why is radiographic contrast important in dental imaging?
✔✔It allows for differentiation between various tissues, such as bone, teeth, and soft tissues,
helping to identify dental problems clearly.
What does "underexposure" mean in dental radiography?
✔✔It occurs when the exposure time or radiation dose is too low, resulting in a light or unclear
image.
What does the term "sharpness" refer to in dental radiographs?
✔✔It refers to the clarity of the image, with sharper images providing better detail for diagnosis.
2
, What is a periapical X-ray used for in dentistry?
✔✔To capture the entire tooth and surrounding bone, which helps in diagnosing infections,
fractures, or other dental issues.
Why should a lead apron be used during dental radiographic procedures?
✔✔To protect the patient’s body from unnecessary radiation exposure, especially to sensitive
areas like the thyroid and reproductive organs.
What does "radiolucent" mean in dental radiology?
✔✔It refers to areas that appear dark on the X-ray because they allow more X-rays to pass
through, like cavities or soft tissue.
What is the significance of kilovoltage (kVp) in dental radiography?
✔✔It controls the energy level of the X-ray beam, affecting the image contrast and penetration
ability.
Why is it important to ensure the X-ray beam is aligned properly?
✔✔To avoid distortion in the image and ensure that the area of interest is accurately captured.
3
