From: The effect of adjunctive chlorhexidine mouthrinse on GCF MMP-8 and TIMP-1 levels in gingivitis: a randomized placebo-controlled study
Parameters
CHX group
Placebo group
N
25
Age (years)
(mean ± SD)
27.56 ± 8.3
25.44 ± 5.6
Gender
Female/male
12/13
13/12
Extent of gingivitis
PBI ≥ 2 at 8–13 sites
11
12
PBI ≥ 2 at more than 13 sites
14
13