The effectiveness of water jet flossing and interdental flossing for oral hygiene in orthodontic patients with fixed appliances: a randomized clinical trial

Table 2 Comparison of median percentage values between initial and follow-up stages in both study groups

Study group and outcome variables	Stage – Mean % (Sd.,)		Median% difference		p-value*
Study group and outcome variables	Initial	Follow-up
Interdental floss group			16.13
			23.57
Plaque Index	37.50(18.3)	21.37(19.6)			0.010
	44.40(44.6)	20.83(30.9)			0.002
Gingival Bleeding Index
	10 (83.3)	11 (91.7)			--
Gingival index grades	2 (16.7)	1 (8.3)			--
2
3
Water jet flossing group
Plaque index	36.45(40.0)	14.58(11.5) 15.62(13.5)	21.87		< 0.0001
	47.91(47.7)	15.62(13.5)	32.29
Gingival Bleeding index					< 0.0001
	17 (94.4)	18 (100)		--
Gingival index grades	1 (5.6)	--	--	--
2			--		--
3					--

ISSN: 1472-6831