[Table/Fig-7]:

Mean and mean difference of papillary bleeding index

Assessment interval	Mean ± SD	Mean difference	t value	p-value
Baseline	2.20±0.67	Baseline to
3 month	0.26±0.45	1.93±0.45	16.35	<0.001
6 month	0.33±0.61	1.86±1.06	6.82	<0.001