Practice Test Geeks(AGD) Academy of General Dentistry Certification Practice Test
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Oral Diagnosis and Pathology Flashcards

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

Read the first 7 Oral Diagnosis and Pathology flashcards as text

  1. Erythroplakia of the oral mucosa carries a malignant transformation rate of approximately:

    Answer: 50%

    Erythroplakia has a malignant transformation rate of approximately 50%, making it far more dangerous than leukoplakia.

  2. A teenager presents with a well-defined unilocular radiolucency surrounding the crown of an unerupted mandibular third molar. This most likely represents:

    Answer: Dentigerous cyst

    A dentigerous (follicular) cyst forms around the crown of an unerupted tooth, presenting as a pericoronal radiolucency.

  3. Which oral manifestation is MOST characteristic of primary herpetic gingivostomatitis?

    Answer: Multiple small vesicles that rupture leaving painful ulcers with generalized gingival erythema

    Primary HSV-1 infection produces multiple vesicles that rupture into painful ulcers accompanied by diffuse gingival erythema, fever, and lymphadenopathy.

  4. Melanotic macule of the lip differs from an oral melanoma primarily by:

    Answer: Lack of epithelial atypia and absence of junctional activity

    Melanotic macule shows increased melanin in basal cells without melanocyte atypia or junctional activity, distinguishing it from early melanoma.

  5. 'Soap bubble' or multilocular radiolucency in the posterior mandible of a young adult is the classic radiographic presentation of:

    Answer: Ameloblastoma

    Ameloblastoma classically presents as a multilocular soap-bubble or honeycomb radiolucency in the posterior mandible of adults in the third to fourth decade.

  6. A creamy white plaque on the buccal mucosa of an HIV-positive patient that wipes off leaving an erythematous base most likely represents:

    Answer: Pseudomembranous candidiasis

    Pseudomembranous candidiasis (thrush) presents as removable white plaques on an erythematous base, especially common in immunocompromised patients.

  7. Calcifying epithelial odontogenic tumor (Pindborg tumor) is characterized histologically by:

    Answer: Amyloid-like material with Liesegang ring calcifications

    Pindborg tumor shows sheets of polyhedral epithelial cells with amyloid-like material and concentric Liesegang ring calcifications.