Practice Quiz

ADA NBDHE Dental Hygienist

Category - Provision of Clinical Dental Hygiene Services

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A Class III furcation is characterized by all of the following EXCEPT one. Which is the EXCEPTION?
  1. Clinically-visible
  2. A Naber's probe can enter the furcation
  3. A Naber's probe can pass through the furcation
  4. Clinical attachment loss
Explanation
Answer: A - A Class III furcation is characterized by all of the following except clinically-visible.
A Class III furcation can only exist if there is some clinical attachment loss. When explored with a Naber's probe, the probe will enter and pass through the furcation entirely. There is not enough recession to expose the furcation, clinically.
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