Table 1. Apparent Contact Angles of DI Water, Blood, and PRP on Different Surfaces^a.

	DI water	blood	PRP
Ti	86	82	96
A	79	87	94
Ti1	32	25	12
A1	46	22	8
Ti2	13	41	29
A2	17	38	18
Ti3	64	47	16
A3	46	39	28

^aThe values were rounded off to zero decimal places. There is a significant difference in the apparent contact angle (p < 0.05) between all surfaces except A1 and A3 and Ti and Ti3 (statistical differences are not shown in the table).