[Table/Fig-4]:

Mean and mean difference of plaque index

Assessment interval	Mean ± SD	Mean difference	t value	p-value
Baseline	1.24±0.18	Baseline to
1 month	1.02±0.18	0.22±0.10	8.37	<0.001
3 month	0.87±0.23	0.37±0.13	10.46	<0.001
6 month	0.80±0.27	0.44±0.19	9.04	<0.001