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

Table 7

Tukey’s test of multiple comparisons for different groups of wettability contact angle test.

Tukey’s HSD test
Groups pairs	Difference	Standard error	Q score	P-value	Sig.
C1 vs. C2	2.81	1.9995	1.4053	0.85506	NS
C1 vs. P3	15.318	1.9995	7.6608	0.00023	S
C1 vs. P5	9.942	1.9995	4.9721	0.01648	S
C1 vs. P7	3.962	1.9995	1.9815	0.63401	NS
C2 vs. P3	12.508	1.9995	6.2555	0.00217	S
C2 vs. P5	7.132	1.9995	3.5668	0.1252	NS
C2 vs. P7	1.152	1.9995	0.5761	0.99374	NS
P3 vs. P5	5.376	1.9995	2.6886	0.34858	NS
P3 vs. P7	11.356	1.9995	5.6793	0.00544	S
P5 vs. P7	5.98	1.9995	2.9907	0.2526	NS