Clinical parameters 3 months
M (SD)
6 months
M (SD)
Difference
M (SD)
Pa value
Probing pocket depth (PPD) 2.95 (0.36) 2.55 (0.43) 0.40 (0.56) Nsb
Clinical attachment level (CAL) 2.85 (0.47) 2.55 (0.59) 0.30 (0.42) Nsb
Width of keratinized gingiva (WKG) 6.30 (2.26) 6.20 (2.20) 0.10 (0.31) Nsb
Plaque index (PI) 0.81 (0.10) 0.58 (0.18) 0.23 (0.12) 0.007c
Papillary bleeding index (PBI) 0.84 (0.10) 0.49 (0.20) 0.36 (0.16) 0.008c

aTested between 3 and 6 months value.
bNonsignificant, non-parametric Wilcoxon paired test.
cSignificant, non-parametric Wilcoxon paired test.
M (SD) = mean (standard deviation).