National Dental Examining Board of Canada (NDEB) Practice Exam

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Histopathologic changes in chronic gingivitis are characterized by

  1. Hyperplasia of gingival epithelium

  2. Calcification of dental pulp

  3. Disruption of gingival fibers and inflammatory infiltrate of plasma cells and lymphocytes

  4. Increased cementum formation

The correct answer is: Disruption of gingival fibers and inflammatory infiltrate of plasma cells and lymphocytes

Chronic gingivitis is characterized by inflammation of the tissues surrounding the teeth. The correct answer, C, describes the specific histopathologic changes that occur in chronic gingivitis. Option A, hyperplasia of gingival epithelium, may be seen in other types of gingivitis but is not specific to chronic gingivitis. Option B, calcification of dental pulp, is not a characteristic feature of gingivitis. Option D, increased cementum formation, may occur in periodontitis but is not specific to chronic gingivitis.

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