Practice Test GeeksNBDE - National Board Dental Examination Practice Test
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Trivia Flashcards

7 cards from real NBDE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which vitamin deficiency is most commonly associated with glossitis and angular cheilitis?

    Answer: Vitamin B2 (Riboflavin)

    Riboflavin (B2) deficiency classically causes glossitis, angular cheilitis, and magenta tongue.

  2. The Wharton's duct is the excretory duct of which salivary gland?

    Answer: Submandibular gland

    Wharton's duct drains the submandibular gland and opens at the sublingual caruncle.

  3. Which of the following organisms is the primary etiologic agent of acute necrotizing ulcerative gingivitis (ANUG)?

    Answer: Treponema vincenti and Fusobacterium nucleatum

    ANUG is caused by a fusospirochetal complex dominated by Treponema vincenti and Fusobacterium nucleatum.

  4. The gonion is a landmark located on which bone?

    Answer: Mandible

    Gonion is the most posterior-inferior point of the mandibular angle, used in cephalometric analysis.

  5. Which pulp test uses carbon dioxide snow or ethyl chloride to assess pulp vitality?

    Answer: Cold test

    Cold testing with CO2 snow or ethyl chloride stimulates A-delta fibers to evaluate pulp sensibility.

  6. Fordyce spots in the oral cavity represent which normal anatomical variant?

    Answer: Ectopic sebaceous glands

    Fordyce spots are ectopic sebaceous glands appearing as yellowish-white papules on the buccal mucosa or lips.

  7. Which local anesthetic has the longest duration of action among those commonly used in dentistry?

    Answer: Bupivacaine

    Bupivacaine (Marcaine) provides the longest duration of pulpal and soft tissue anesthesia among common dental anesthetics.