# With the increase of age, keratinization of gingiva:
A. Increases
B. Decreases
C. Remains same
D. None of the above
The correct answer is B. Decreases.
Thinning and decreased keratinization of the gingival epithelium have been reported with age. The significance of these findings could mean an increase in epithelial permeability to bacterial antigens, a decreased resistance to functional trauma, or both contributing to increased vulnerability of the gingiva to trauma and periodontal disease in older adults.
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