Table 3.
The amount of calcium, phosphorus, and oxygen expressed in atomic %, determined by EDS measurements for non-oxidized NiTi and NiTi with a TiO2 surface layers after 30 days of SBF incubation. Results obtained for measurements from the image area and the average of three point measurements.
| 30 Days in SBF | Ca (%at.) | P (%at.) | O (%at.) | Ca/P | ||||
|---|---|---|---|---|---|---|---|---|
| Place of Analysis | Image Area | Point | Image Area | Point | Image Area | Point | Image Area | Point |
| NiTi (mechanically ground surface) | 12.89 | 20.88 ± 0.48 | 12.16 | 18.52 ± 0.59 | 38.41 | 37.92 ± 1.33 | 1.06 | 1.13 |
| NiTi + TiO2 (290 °C, mechanically ground surface) |
12.63 | 17.15 ± 0.32 | 11.01 | 17.97 ± 0.24 | 44.38 | 43.38 ± 1.07 | 1.15 | 0.95 |
| NiTi + TiO2 (190 °C, mechanically ground surface) |
13.03 | 33.63 ± 0.42 | 11.65 | 18.94 ± 0.27 | 42.16 | 27.49 ± 1.47 | 1.12 | 1.78 |
| NiTi + TiO2 (390 °C, mechanically ground surface) |
10.59 | 35.61 ± 0.41 | 10.77 | 20.13 ± 0.26 | 40.15 | 23.81 ± 1.32 | 0.98 | 1.76 |