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

Table 3

One-way ANOVA test of roughness by AFM.

Test	Within groups			Between groups				Sig.
	Sum of squares	Df	Mean square	Sum of squares	Df	Mean square
Roughness	14504.41	36	402.9002	108244.1	3	36081.35	89.554	0.000 (HS)