A Novel Coating of Orthodontic Archwires with Chlorhexidine Hexametaphosphate Nanoparticles

Table 2

Comparison of the CHX elusion (μmole) of coated SSW and NiTiW.

Duration	Groups	N	Min	Max	Mean	SD	SE	Shapiro–Wilk test ( value)	Independent samples t-test ( value)
1 day	SSW	10	8.50	13.15	10.24	1.51	0.48	0.265	0.02
	NiTiW	10	10.12	14.23	11.89	1.36	0.43	0.691
7 days	SSW	10	16.86	21.10	18.49	1.32	0.41	0.425	0.001
	NiTiW	10	17.97	23.58	21.20	1.83	0.57	0.529
14 days	SSW	10	27.14	31.59	29.23	1.33	0.42	0.961	0.034
	NiTiW	10	28.72	32.00	30.50	1.14	0.36	0.648
21 days	SSW	10	33.89	37.43	36.00	1.12	0.35	0.623	0.471
	NiTiW	10	33.50	37.00	35.60	1.26	0.40	0.328
28 days	SSW	10	40.75	45.86	43.48	1.78	0.56	0.561	0.007
	NiTiW	10	44.00	47.00	45.43	0.98	0.31	0.826

The mean difference is significant at the 0.05 level.