Table 4.
The number of platelets adhered to the surface of the tested biomaterials, broken down by the type of surface modification and the degree of aggregation. Other explanations as in Table 3 and in the text of Section 3.4. Statistical significance levels are marked with asterisks as follows: * p < 0.05, ** p < 0.01, *** p < 0.001, ns—not significant.
| Aggregation Type |
Mean per Biomaterial | A Grinding |
B Polishing |
C Rosette Like |
D Crater Like |
Significance | ||
|---|---|---|---|---|---|---|---|---|
| AISI 316L {1} |
single platelets | 42 ± 53 | 89 ± 62 | 69 ± 40 | 78 ± 59 | 73 ± 38 | 138 ±76 | *** A–D, B–D, C–D |
| small aggregates |
32 ± 26 | 17 ± 11 | 37 ± 23 | 28 ± 22 | 45 ± 35 | * B–C, ** A–C *** A–B, A–D, C–D |
||
| large aggregates | 4 ± 6 | 6 ± 8 | 4 ± 5 | 1 ± 3 | 3 ± 5 | * A–B, C–D *** A–C, A–D, B–C |
||
| CoCrMo {2} |
single platelets | 42 ± 52 | 88 ± 62 | 93 ± 69 | 74 ± 55 | 74 ± 46 | 115 ± 67 | * A–D *** B–D, C–D |
| small aggregates |
35 ± 21 | 23 ± 13 | 43 ± 23 | 32 ± 15 | 38 ± 23 | ** A–C *** A–B, A–D, C–D |
||
| large aggregates | 3 ± 5 | 2 ± 4 | 3 ± 4 | 4 ± 5 | 3 ± 5 | ** A–C | ||
| Ti6Al4V {3} |
single platelets | 33 ± 39 | 68 ± 44 | 62 ± 35 | 57 ± 47 | 66 ± 41 | 90 ± 46 | *** A–D, B–D, C–D |
| small aggregates | 27 ± 22 | 19 ± 12 | 31 ± 21 | 26 ± 20 | 33 ± 29 | *** A–B, A–D |
||
| large aggregates | 3 ± 6 | 3 ± 4 | 5 ± 8 | 2 ± 4 | 2 ± 4 | * A–B *** B–C, B–D |
||
| Ti6Al7Nb {4} |
single platelets | 32 ± 37 | 65 ± 42 | 67 ± 37 | 64 ± 46 | 61 ± 44 | 69 ± 40 | ns |
| small aggregates | 27 ± 21 | 21 ± 16 | 35 ± 21 | 22 ± 18 | 29 ± 23 | * A–D, C–D *** A–B, C–B |
||
| large aggregates | 4 ± 5 | 2 ± 4 | 6 ± 7 | 2 ± 3 | 3 ± 4 | *** A–B, B–C, B–D | ||
| significance | single platelets | ** {1}–{3}, {1}–{4}, {2}–{3}, {2}–{4} | * {1}–{3}, {2}–{3} ** {1}–{4}, {2}–{4} |
*** {2}–{1}, {2}–{3}, {2}–{4} |
** {2}–{3} *** {1}–{3} |
ns | ** {3}–{4} *** {1}–{2}, {1}–{3}, {2}–{4} |
|
| small aggregates | * {2}–{3}, {2}–{4} | ns | ns | ns | ns | |||
| large aggregates | ns | ns | ns | ns | ns | |||