Table 1. Mean ± SD values of plaque index and mean sulcus bleeding index at all-time intervals for placebo, 1.2% ATV and 1.2% SMV groups .

Parameter	Interval	1.2% ATV	1.2% SMV	Placebo	P-value
PI	B/L	1.55 ± 0.33	1.59 ± 0.27	1.64 ± 0.29	0.938
	3 months	1.01 ± 0.26	1.03 ± 0.22	1.08 ± 0.30
	6 months	0.55 ± 0.17	0.57 ± 0.18	0.60 ± 0.21
	9 months	0.59 ± 0.26	0.60 ± 0.25	0.66 ± 0.22
mSBI	B/L	2.56 ± 0.29	2.52 ± 0.39	2.49 ± 0.24	<0.0001*
	3 months	1.21 ± 0.22	1.34 ± 0.31	1.45 ± 0.30
	6 months	1.05 ± 0.22	1.03 ± 0.28	1.31 ± 0.35
	9 months	1.02 ± 0.23	1.12 ± 0.32	1.56 ± 0.36

^*Statistically significant at P<0.05