Table 2.

Oral health status of intervention and control groups

Oral health status	Intervention (N = 25)	Control (N = 16)
	Mean ± SD	Mean ± SD	p-valueb
Plaque index (PI)
Before	1.66 ± 0.78	1.54 ± 0.67	0.83
After	0.94 ± 0.64	1.99 ± 0.52	<  0.01
Difference	−0.73 ± 0.43	0.46 ± 0.40
p-valuea	<  0.01	0.03
Gingival index (GI)
Before	2.36 ± 0.76	2.78 ± 0.44	0.14
After	1.65 ± 0.83	2.94 ± 0.17	<  0.01
Difference	−0.70 ± 0.66	0.17 ± 0.35
p-valuea	<  0.01	0.50
Tongue coating index (TCI)
Before	0.96 ± 1.10	0.44 ± 0.96	0.07
After	0.16 ± 0.47	1.13 ± 0.72	<  0.01
Difference	−0.80 ± 0.87	0.69 ± 0.95
p-valuea	<  0.01	0.02

^aWilcoxon signed-rank test; ^bWilcoxon rank-sum test