Table 1. Comparing baseline, one-month, and two-month mean PI, GI, and MPBI values between the experimental categories.

PI: plaque index, GI: gingival index, MPBI: marginal papilla bleeding index

		Category A	Category B	Category C	p-value
Baseline	PI (mean ± SD)	1.3 ± 0.43	1.4 ± 0.57	1.4 ± 0.36	0.67
	GI (mean ± SD)	1.4 ± 0.48	1.5 ± 0.58	1.4 ± 0.45	0.84
	MPBI (mean ± SD)	1.2 ± 0.86	1.1 ± 0.33	1.2 ± 0.51	0.72
One month	PI (mean ± SD)	1.4 ± 0.47	1.1 ± 0.52	1.0 ± 0.47	0.031
	GI (mean ± SD)	1.6 ± 0.54	1.1 ± 0.54	0.9± 0.46	0.026
	MPBI (mean ± SD)	1.0 ± 0.67	0.7 ± 0.40	0.6 ± 0.53	0.001
Two months	PI (mean ± SD)	1.6 ± 0.46	0.9 ± 0.47	0.6 ± 0.40	0.020
	GI (mean ± SD)	1.9 ± 0.30	0.8 ± 0.43	0.6 ± 0.48	0.014
	MPBI (mean ± SD)	1.2 ± 0.51	0.6 ± 0.52	0.4 ± 0.41	0.003