Dental Radiography 314 Exam
Questions and Answers 100% Pass
What is the primary purpose of dental radiography?
✔✔To capture images of teeth and surrounding structures for diagnostic purposes.
What does the term "periapical radiograph" refer to in dental radiography?
✔✔A type of X-ray that shows the entire tooth, including the root and surrounding bone.
What is the role of the lead apron in dental radiography?
✔✔To protect the patient from unnecessary radiation exposure during the procedure.
What is the purpose of the film holder in dental radiography?
✔✔To help position the X-ray film correctly inside the mouth to avoid distortion.
What is the effect of increasing exposure time in dental radiography?
✔✔It increases the amount of radiation the patient receives and may enhance image quality if
underexposed.
1
,What does the term "bitewing radiograph" refer to?
✔✔An X-ray that shows the upper and lower teeth in one view, typically used to detect cavities
between teeth.
How does the use of collimation in dental radiography affect the image?
✔✔It limits the area exposed to radiation, improving image quality and reducing patient dose.
What is the purpose of using a grid in dental radiography?
✔✔To reduce scatter radiation and improve image contrast, especially in patients with thicker
tissue.
What is the role of the central ray in dental radiography?
✔✔To ensure the X-ray beam is directed at the center of the film or sensor for an accurate
image.
What is the purpose of using digital sensors in dental radiography?
✔✔To capture X-ray images electronically, allowing for immediate viewing and less radiation
exposure compared to film.
2
, What is the importance of maintaining proper positioning during dental X-ray procedures?
✔✔Proper positioning ensures accurate images and minimizes unnecessary radiation exposure to
the patient.
What is the function of the X-ray tubehead in dental radiography?
✔✔To generate and direct the X-rays toward the patient’s teeth and film or sensor.
What does the term "radiographic contrast" mean in dental radiography?
✔✔The difference in density between structures in the image, allowing for clear differentiation
of tissues.
What does the term "rectangular collimation" refer to in dental radiography?
✔✔A method of collimation that shapes the X-ray beam into a rectangular form to reduce
exposure and improve image quality.
How does the use of a higher kilovoltage (kVp) setting affect dental radiography?
✔✔It increases the energy of the X-ray beam, which can reduce patient exposure and produce
clearer images.
3
Questions and Answers 100% Pass
What is the primary purpose of dental radiography?
✔✔To capture images of teeth and surrounding structures for diagnostic purposes.
What does the term "periapical radiograph" refer to in dental radiography?
✔✔A type of X-ray that shows the entire tooth, including the root and surrounding bone.
What is the role of the lead apron in dental radiography?
✔✔To protect the patient from unnecessary radiation exposure during the procedure.
What is the purpose of the film holder in dental radiography?
✔✔To help position the X-ray film correctly inside the mouth to avoid distortion.
What is the effect of increasing exposure time in dental radiography?
✔✔It increases the amount of radiation the patient receives and may enhance image quality if
underexposed.
1
,What does the term "bitewing radiograph" refer to?
✔✔An X-ray that shows the upper and lower teeth in one view, typically used to detect cavities
between teeth.
How does the use of collimation in dental radiography affect the image?
✔✔It limits the area exposed to radiation, improving image quality and reducing patient dose.
What is the purpose of using a grid in dental radiography?
✔✔To reduce scatter radiation and improve image contrast, especially in patients with thicker
tissue.
What is the role of the central ray in dental radiography?
✔✔To ensure the X-ray beam is directed at the center of the film or sensor for an accurate
image.
What is the purpose of using digital sensors in dental radiography?
✔✔To capture X-ray images electronically, allowing for immediate viewing and less radiation
exposure compared to film.
2
, What is the importance of maintaining proper positioning during dental X-ray procedures?
✔✔Proper positioning ensures accurate images and minimizes unnecessary radiation exposure to
the patient.
What is the function of the X-ray tubehead in dental radiography?
✔✔To generate and direct the X-rays toward the patient’s teeth and film or sensor.
What does the term "radiographic contrast" mean in dental radiography?
✔✔The difference in density between structures in the image, allowing for clear differentiation
of tissues.
What does the term "rectangular collimation" refer to in dental radiography?
✔✔A method of collimation that shapes the X-ray beam into a rectangular form to reduce
exposure and improve image quality.
How does the use of a higher kilovoltage (kVp) setting affect dental radiography?
✔✔It increases the energy of the X-ray beam, which can reduce patient exposure and produce
clearer images.
3
