Practice Quiz

ADA NBDHE Dental Hygienist

Category - Scientific Basis for Dental Hygiene Practice

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What group of principle fibers extends from the alveolar bone to the cementum in an apical direction?
  1. Alveolar crest group
  2. Horizontal group
  3. Oblique group
  4. Apical group
Explanation
Answer: C - The oblique group of principle fibers extends from the alveolar bone to the cementum in an apical direction. This fiber group is the most numerous fiber group and provides the main support to a tooth. It is primarily responsible for bearing vertical masticatory stresses.
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