# 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.
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