Mean values ± standard deviation of clinical parameters in group IV treated with standard scaling and root planning only.

Table 5: Mean values ± standard deviation of clinical parameters in group IV treated with standard scaling and root planning only. Letters a, b, and c refer to the degree of significance at ^*P<0.05; significant difference was found among groups marked by different letters (a,b,c) and no significant difference was found among groups marked by similar letters.

Time	Gingival Index	Plaque Index	Bleeding Index	Pocket Depth	Clinical Attachment Loss
Baseline	2.01 ± 0.16^a	1.89 ± 0.3^a	0.77 ± 0.13^a	4.78 ± 0.41^a	4.90 ± 0.5^a
1 month	0.78 ± 0.11^b	0.83 ± 0.13^b	0.43 ± 0.16^b	4.01 ± 0.33^b	4.18 ± 0.32^b
3 months	0.52 ± 0.12^c	0.46 ± 0.11^c	0.26 ± 0.13^c	3.61 ± 0.47^c	3.65 ± 0.41^c
P value	0.000^*	0.000^*	0.000^*	0.000^*	0.000^*