Microbial Changes in the Gingival Sulcus Can Cause a Shift

Microbial changes in the gingival sulcus can cause a shift from a healthy microbial flora to a more pathogenic microbial flora.This change has been attributed to those decreased levels of hormones in the blood,namely estrogen and progesterone.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The first statement is false; the second is true.

Correct Answer:

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