Practice Quiz

ADA NBDE National Board Dental Part II

Category - NBDE II

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What duct opens opposite the upper second molar?
  1. Parotid
  2. Frenum
  3. Wharton’s
  4. Temporal
Explanation
Answer: A - The parotid duct opens opposite the upper second molar. It is referred to as Stensen’s duct. The duct passes through buccal fat, buccopharyngeal facia, and buccinator muscle to release saliva into the mouth cavity. The duct may be injected with iodized oil to trace its outline to conduct a sailography.
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