Table 1.
Roughness values and contact angles of the four different surfaces (n=8)
| Parameters
|
Roughness
|
Contact angle (degrees) | ||
|---|---|---|---|---|
| Groups | Surface area difference (%) | RMS (nm) | Z range (nm) | |
| ST | 7.03±3.28 | 24.1±5.16 | 241.25±60.23 | 45.70±6.35 |
| MT | 25.42±3.45 | 55.85±8.77 | 567.75±76.81 | 18.29±3.61** |
| NT-Sr | 21.38±0.60 | 39.99±11.62 | 459.25±83.53 | 26.09±4.42**,## |
| MNT-Sr | 31.68±5.54 | 64.55±5.17 | 646.00±80.37 | 16.78±4.94**,†† |
Notes: Data are presented as mean ± standard deviation.
**
P<0.01 compared with ST;
##
P<0.01 compared with MT; and
††
P<0.01 compared with NT-Sr.
Abbreviations: MNT-Sr, micro/nanorough strontium-loaded Ti; MT, micro titanium surface; NT-Sr, nano strontium-containing titanium surface; RMS, root mean square; ST, smooth titanium surface.