Evaluation of High-Performance Polyether Ether Ketone Polymer Treated with Piranha Solution and Epigallocatechin-3-Gallate Coating

Table 9

One-way ANOVA test of Vickers hardness test results.

Test	Within groups			Between groups				Sig.
	Sum of squares	Df	Mean square	Sum of squares	Df	Mean square
Hardness (Vickers)	28.7781	36	0.799392	667.3904	3	222.4635	278.291	0.000 (HS)