Practice Quiz

ADA NBDE National Board Dental Part I

Category - NBDE

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What term is used to describe a sharply defined, narrow, and linear depression formed during tooth development that usually separates lobes or major portions of a tooth?
  1. Developmental groove
  2. Supplemental groove
  3. Buccal groove
  4. Lingual groove
Explanation
Answer: A - A developmental groove is one of the fine lines found in tooth enamel that marks the junction of the lobes of the crown in its development. It is a sharply defined, narrow, and linear depression and usually separates lobes or major portions of a tooth. Major grooves are named according to their location.
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