Clinical and Microbiological Effects of Weekly Supragingival Irrigation with Aerosolized 0.5% Hydrogen Peroxide and Formation of Cavitation Bubbles in Gingival Tissues after This Irrigation: A Six-Month Randomized Clinical Trial

Table 2

Clinical data of sampled sites () at different time points.

Time points	Treatment groups	Periodontal parameters
		API (%)	MGI (points)	BI (%)	PPD (mm)	Percentage of sites showing
Initial	Control ()					93
	Test ()					95
3 months	Control ()			^#		89.5
	Test ()	^#		^#		75.6
6 months	Control ()			^#		91.7
	Test ()	^&		^&		60.2

API: Approximal Plaque Index; MGI: Modified Gingival Index; BI: Bleeding Index; PPD: Pocket Probing Depth. Within-group differences: (between initial time point and follow-up visits). Within-group differences: (between 3 months and follow-up visits). ^#Within-group differences: (between initial time point and follow-up visits). Between-group differences: . ^&Between-group differences: .