During dental radiography, the lead apron should extend from the neck to which area for adequate protection?

• A. The lap
• B. The knees
• C. The shoulders
• D. The feet

Answer: (A)

The main idea is to shield the body from scatter radiation produced during dental X-ray exposures. A lead apron works by attenuating scattered photons, reducing the dose to radiosensitive tissues in the trunk, especially the abdominal and pelvic areas. Extending the apron from the neck down to the lap ensures these regions are protected, including the reproductive organs, without interfering with the part of the body being imaged. If the apron stopped higher or went further down than the lap, critical areas would not be adequately shielded. The knees, feet, or shoulders aren’t the primary regions to protect in this context, so coverage to the lap provides the most effective protection for the trunk and reproductive organs during dental radiography.