Improving Surface Properties of PEEK for Dental Applications by Using Piranha Solution

Table 2

Shapiro–Wilk test for all groups in AFM and wettability contact angle test.

Tests	Group C1		Group C2		Group P3		Group P5		Group P7
	P-value	Passed	P-value	Passed	P-value	Passed	P-value	Passed	P-value	Passed
AFM	0.5941; NS	Yes	0.8226; NS	Yes	0.1874; NS	Yes	0.8642; NS	Yes	0.4281; NS	Yes
Wettability contact angle test	0.6786; NS	Yes	0.5474; NS	Yes	0.7641; NS	Yes	0.2526; NS	Yes	0.9995; NS	Yes