Practice Quiz

ADA NBDHE Dental Hygienist

Category - Scientific Basis for Dental Hygiene Practice

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What surface junction does the vermillion zone meet?
  1. Skin, inner eye
  2. Skin, oral mucosa
  3. Skin, nasal cavity
  4. There is no such zone.
Explanation
Answer: B - The surface junction that the vermillion zone meets is the skin and the oral mucosa. The vermillion zone of the lower lip is a frequent site for oral cancer. The entire vermillion zone is also a common site for herpetic lesions.
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