Dental Radiography 314 Exam
Questions and Answers Latest Version
Already Passed
What is the correct technique for taking periapical radiographs?
✔✔Place the sensor or film at the apex of the tooth, ensuring it is parallel to the long axis of the
tooth, and align the X-ray beam accordingly.
What is the purpose of using a bitewing radiograph?
✔✔To capture images of the crowns of the upper and lower teeth and detect interproximal decay
or bone loss.
How should a dental assistant handle a patient who is anxious about getting X-rays?
✔✔Provide reassurance, explain the procedure, and ensure the patient is comfortable by taking
extra care to minimize discomfort.
What is the purpose of the collimator in dental radiography?
✔✔To restrict the size of the X-ray beam, minimizing radiation exposure to the patient.
1
,How can a dental assistant reduce the amount of radiation exposure to a patient during
radiography?
✔✔Use the lowest possible exposure settings, ensure proper film positioning, and limit the
number of X-rays taken to those necessary for diagnosis.
What is the function of the radiopaque marker on the X-ray film?
✔✔It helps identify the orientation of the film and allows for accurate image interpretation.
What should a dental assistant do if a patient has a medical condition that may require
modifications in radiographic procedures?
✔✔Inform the dentist, make necessary adjustments to the procedure, and ensure the patient’s
comfort and safety.
What is the role of a dental assistant in developing dental radiographs?
✔✔Follow proper procedures for developing films or images, ensuring they are processed in a
timely and accurate manner.
What is the difference between direct and indirect digital radiography?
2
, ✔✔Direct digital radiography uses a sensor to capture images immediately, while indirect digital
radiography uses a phosphor plate that needs to be scanned.
What is the correct method for taking an occlusal radiograph?
✔✔Position the film or sensor between the occlusal surfaces of the upper and lower teeth and
align the X-ray beam at a 90-degree angle to the film.
How should a dental assistant handle a situation where the X-ray film is exposed to light before
processing?
✔✔Discard the exposed film as it will be ruined, and take a new radiograph using proper
shielding.
What is the purpose of using an image receptor holder during radiographic procedures?
✔✔To help stabilize the film or sensor in the correct position in the mouth, ensuring accurate
and clear images.
What is the ideal distance between the X-ray tube and the patient during exposure?
✔✔It should be at least 6 feet to minimize radiation exposure to the dental professional.
3
Questions and Answers Latest Version
Already Passed
What is the correct technique for taking periapical radiographs?
✔✔Place the sensor or film at the apex of the tooth, ensuring it is parallel to the long axis of the
tooth, and align the X-ray beam accordingly.
What is the purpose of using a bitewing radiograph?
✔✔To capture images of the crowns of the upper and lower teeth and detect interproximal decay
or bone loss.
How should a dental assistant handle a patient who is anxious about getting X-rays?
✔✔Provide reassurance, explain the procedure, and ensure the patient is comfortable by taking
extra care to minimize discomfort.
What is the purpose of the collimator in dental radiography?
✔✔To restrict the size of the X-ray beam, minimizing radiation exposure to the patient.
1
,How can a dental assistant reduce the amount of radiation exposure to a patient during
radiography?
✔✔Use the lowest possible exposure settings, ensure proper film positioning, and limit the
number of X-rays taken to those necessary for diagnosis.
What is the function of the radiopaque marker on the X-ray film?
✔✔It helps identify the orientation of the film and allows for accurate image interpretation.
What should a dental assistant do if a patient has a medical condition that may require
modifications in radiographic procedures?
✔✔Inform the dentist, make necessary adjustments to the procedure, and ensure the patient’s
comfort and safety.
What is the role of a dental assistant in developing dental radiographs?
✔✔Follow proper procedures for developing films or images, ensuring they are processed in a
timely and accurate manner.
What is the difference between direct and indirect digital radiography?
2
, ✔✔Direct digital radiography uses a sensor to capture images immediately, while indirect digital
radiography uses a phosphor plate that needs to be scanned.
What is the correct method for taking an occlusal radiograph?
✔✔Position the film or sensor between the occlusal surfaces of the upper and lower teeth and
align the X-ray beam at a 90-degree angle to the film.
How should a dental assistant handle a situation where the X-ray film is exposed to light before
processing?
✔✔Discard the exposed film as it will be ruined, and take a new radiograph using proper
shielding.
What is the purpose of using an image receptor holder during radiographic procedures?
✔✔To help stabilize the film or sensor in the correct position in the mouth, ensuring accurate
and clear images.
What is the ideal distance between the X-ray tube and the patient during exposure?
✔✔It should be at least 6 feet to minimize radiation exposure to the dental professional.
3
