What is the purpose of thyroid shielding during dental radiographs, and when might shielding be minimized?

• A. To reduce thyroid exposure; shielding may be minimized in digital sensor contexts if it interferes with imaging, but best practice is to shield when feasible.
• B. To block all radiation from reaching the neck; shielding is always mandatory and never minimized.
• C. To protect the eyes; shielding is never used for thyroid protection.
• D. To improve overall image contrast; shielding is rarely used.

Answer: (C)