Enhancing Presurgical Infant Orthopedic Appliances: Characterization, Mechanics, and Biofilm Inhibition of a Novel Chlorhexidine-Halloysite Nanotube-Modified PMMA

Table 4

Descriptive and inferential statistics of mechanical properties of different CHX-HNT acrylic samples.

Tests	Groups	Descriptive statistics				ANOVA
		Mean	SD	Min	Max	F-test	value
Flexural strength (MPa)	Acrylic	79	6.63	71.800	87.5	1.821	0.164
	CHX-HNT 1%	77.09	4.02	71.250	81.2
	CHX-HNT 1.5%	76.3	10.60	65.000	87.5
	CHX-HNT 3%	70	7.86	62.500	81.3
	CHX-HNT 4.5%	69.3	5.57	63.700	77.5
Roughness (Ra)	Acrylic	1.488	0.21005	1.180	1.7	0.352	0.839
	CHX-HNT 1%	1.516	0.53580	0.780	2.1
	CHX-HNT 1.5%	1.68	0.20657	1.450	1.9
	CHX-HNT 3%	1.67	0.63263	0.720	2.4
	CHX-HNT 4.5%	1.810	0.69876	0.630	2.4
Hardness	Acrylic	21.43	0.93095	20.000	23	1.047	0.408
	CHX-HNT 1%	21.2	0.87407	20.000	22
	CHX-HNT 1.5%	22.2	1.1506	21.000	24
	CHX-HNT 3%	21.1	0.93897	20.000	22
	CHX-HNT 4.5%	21.4	0.1.01735	20.000	23

Statistically significant difference ( value ≤0.005); min: minimum; max: maximum; SD: standard deviation.