Table 2: Comparison of mean oral hygiene index-simplified score between groups, 6 months following the intervention in the second and third groups but no intervention in the first group

		Oral hygiene index-simplified
Group code		Males (SD)		Females (SD)		Males and females combined (SD)
Group 1		3.05 (0.97)		3.15 (0.93)		3.11 (0.95)
Group 2		0.86 (0.91)		0.78 (0.33)		0.82 (0.41)
Group 3		2.55 (0.94)		3.15 (0.93)		2.85 (0.97)
p-values		p < 0.0001		p < 0.0001		p < 0.0001
Tukey’s post hoc		Group 1 vs group 2: p < 0.0001
test for males and		Group 1 vs group 3: p < 0.752
females		Group 2 vs group 3: p < 0.0001

SD: Standard deviation