Impact of Oral Health Educational Interventions on Oral Hygiene Status of Children with Hearing Loss: A Randomized Controlled Trial

Table 2

Comparison of mean plaque scores at pre- and postintervention levels in study groups.

Groups	Plaque scores
	Preintervention	Postintervention	Pre-post
			Mean difference
Group 1 (pictorial)			1.17
Group 2 (video)			0.88
Group 3 (control)			0.56
value	0.807	<0.001	—

SD: standard deviation.