Dental Radiography Safety and Positioning Quiz

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Questions and Answers

Which dental professionals can serve as dental radiographers in a typical dental practice?

  • Dental hygienists
  • Dental assistants
  • Dentists
  • All of the above (correct)

What are some of the responsibilities of a dental radiographer in regard to dental imaging?

  • Positioning and exposure of dental x-ray imaging receptors
  • Processing of dental x-ray films
  • Education of patients about dental imaging
  • All of the above (correct)

What should the dental radiographer do to avoid occupational exposure to x-radiation?

  • Avoid the primary beam
  • Maintain an adequate distance
  • Use proper shielding
  • All of the above (correct)

Which of the following measures can minimize radiation exposure for both the dental patient and the dental radiographer?

<p>Using equipment that complies with state and federal radiation guidelines (C)</p> Signup and view all the answers

What is the first step in limiting the amount of x-radiation received by a dental patient?

<p>Proper prescribing, or ordering, of dental images (A)</p> Signup and view all the answers

What is added filtration in the dental x-ray tubehead?

<p>Placement of aluminum disks in the path of the x-ray beam (A)</p> Signup and view all the answers

Where should the radiation badge be worn?

<p>At the waist (D)</p> Signup and view all the answers

What is the radiation exposure limit for pregnant dental personnel?

<p>0.5 mSv/month (D)</p> Signup and view all the answers

What does MPD stand for in the context of radiation safety?

<p>Maximum Permissible Dose (D)</p> Signup and view all the answers

What is the cumulative occupational dose recommended for a 20-year-old worker?

<p>200 mSv (D)</p> Signup and view all the answers

According to state and federal laws, dental x-ray machines operating at or below 70 kilovoltage (kV) require a minimum total of how much aluminum filtration?

<p>1.5 mm (B)</p> Signup and view all the answers

What type of collimator restricts the size of the x-ray beam to an area slightly larger than a size 2 intraoral receptor and reduces patient exposure by 60%?

<p>Rectangular collimator (C)</p> Signup and view all the answers

Which PID would decrease patient exposure the most?

<p>16&quot; rectangular PID (B)</p> Signup and view all the answers

Which patient protection measure is recommended for all intraoral exposures and is used to protect the thyroid gland from scatter radiation?

<p>Thyroid collar (A)</p> Signup and view all the answers

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