Table 4

	Clinical Attachment Level (Mean ± SEM [mm])
PPD category/Patients groups	Baseline	3 months	6 months
Shallow (≤ 4 mm)
Control^b	4.45 ± 0.35	4.41 ± 0.35	4.36 ± 0.36
Experimental	3.97 ± 0.26	3.93 ± 0.20	4.07 ± 0.22
Moderate (> 4 to ≤ 6 mm)
Control	6.93 ± 0.26	5.68 ± 0.32^a	5.68 ± 0.34^a
Experimental	6.43 ± 0.20	5.52 ± 0.20^a	5.71 ± 0.17^a
Deep (> 6 mm)
Control	9.10 ± 0.32	7.04 ± 0.32^a	6.55 ± 0.44^a
Experimental	8.83 ± 0.32	7.50 ± 0.32^a	7.24 ± 0.32^a
Overall
Control	5.37 ± 0.42	4.87 ± 0.37^a	4.78 ± 0.40^a
Experimental	5.24 ± 0,44	4.78 ± 0,26^a	4.93 ± 0,32

^aStatistically significant difference from baseline (Wilcoxon Signed Ranks test, P < 0.05).
^bNo statistically significant differences were observed between groups (Mann-Whitney test, P > 0.05).