What is the recommended occupational exposure limit for the whole body from dental radiography per year?

What is the recommended occupational exposure limit for the whole body from dental radiography per year?

• A. 5 mSv per year
• B. 50 mSv per year
• C. 500 mSv per year
• D. 100 mSv per year

Answer: (D)

The main idea is protecting dental staff by setting an annual limit on the whole-body dose from radiographic work. This limit is chosen to balance enabling necessary imaging with minimizing long-term cancer risk from ionizing radiation. For occupational exposure to the whole body, many safety references use around 100 mSv per year as the limit. That’s why this option is considered correct: it reflects the level at which protection guidelines aim to cap a worker’s annual exposure, acknowledging that shielding, correct technique, and monitoring keep actual doses well below this ceiling in typical practice. The other amounts don’t fit the standard for occupational exposure. Five mSv per year is far below what workers who perform radiography would be expected to receive; 500 mSv per year is far above acceptable limits; and while some guidelines discuss 50 mSv as an averaged limit over several years, the item in question cites 100 mSv per year as the relevant occupational ceiling. In practice, actual doses are kept as low as reasonably achievable (ALARA) and are typically much less than the limit.

The main idea is protecting dental staff by setting an annual limit on the whole-body dose from radiographic work. This limit is chosen to balance enabling necessary imaging with minimizing long-term cancer risk from ionizing radiation. For occupational exposure to the whole body, many safety references use around 100 mSv per year as the limit. That’s why this option is considered correct: it reflects the level at which protection guidelines aim to cap a worker’s annual exposure, acknowledging that shielding, correct technique, and monitoring keep actual doses well below this ceiling in typical practice.

The other amounts don’t fit the standard for occupational exposure. Five mSv per year is far below what workers who perform radiography would be expected to receive; 500 mSv per year is far above acceptable limits; and while some guidelines discuss 50 mSv as an averaged limit over several years, the item in question cites 100 mSv per year as the relevant occupational ceiling. In practice, actual doses are kept as low as reasonably achievable (ALARA) and are typically much less than the limit.