Prepare for the Dental Radiology certification exam with these test questions and answers. This covers imaging techniques, radiation safety, and radiographic interpretation.
Q: When taking a panoramic radiograph of an obese patient, as compared to a slim patient, exposure (ma or kVp) should:
Answer: Be increased
Q: The major disadvantage of the bisecting angle technique is that;
Answer: Image distortion is more likely
Q: To reduce cross contamination during radiography, the CDC and ADA recommend that the operator do all of the following except
Answer: Take complete medical histories
Q: Ideally, a lead apron would be used
Answer: For any dental radiographs
Q: A full mouth series has just been processed manually. The operator notes that the films on the bottom of the rack are of a different density. What could have caused this?
Answer: Fixer solution was reaching exhaustion
Q: A film has been exposed to scattered radiation will appear…
Answer: Fogged
Q: X-ray exposure time should increase if the patient is
Answer: A large adult
Q: Before exposing a panoramic radiograph on a patient, the operator should request the removal of all of the following except:
Answer: Watch
Q: A patient refuses to have radiographs on his/ her child. The dental assistant should:
Answer: Inform the dentist and document patient’s refusal
Q: Inform the dentist and document patient’s refusal
Answer: Overlapping of proximal surfaces
Q: Where is the radiographic landmark “incisive foramen” usually located?
Answer: Mandibular anterior
Q: Cephalometric radiographs are primarily indicated to evaluate:
Answer: Jaw Relationships
Q: When taking a panoramic radiograph, the patient’s head should be oriented:
Answer: With the midsagittal plane is perpendicular to the floor
Q: Which of the following is most likely to contribute to the fogging of x-ray film?
Answer: Light leaks in the dark room
Q: Which of the following conditions will result in a radiographic image that is too light?
Answer: Weak developing solution