California Registered Dental Assistant (RDA) Written Practice Exam

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Which area of the face is most sensitive to x-ray exposure?

  1. Lens of the eye

  2. Cheek tissues

  3. Forehead

  4. Chin

The correct answer is: Lens of the eye

The lens of the eye is most sensitive to x-ray exposure because it is made up of proteins and fluids, and it is also a part of the body that is constantly exposed to environmental factors. Cheek tissues, forehead, and the chin are not as sensitive to x-ray exposure because they are made up of different types of tissues and have less significant exposure to environmental factors compared to the lens of the eye. It is important to protect the eyes during x-ray procedures to prevent potential damage to the sensitive lens.

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