Table 2.
Bulk density, total porosity, relative bulk density, open porosity, designed porosity, volume shrinkage, and calculated compressive strength of scaffolds with random and designed porosity.
| Sample | Bulk density (g/ cm3) | Total porosity (%) | Relative bulk density (%) | Open porosity (%) | Designed porosity (%) | Volume shrinkage after sintering (%) | Calculated compressive strength (MPa) |
|---|---|---|---|---|---|---|---|
| TCP (DP) | 1 ± 0.06 | 68.3 ± 0.02 | 31.6 ± 0.04 | 48.2 ± 1.5 | 42 | 8.7 ± 1.1 | 6.1 |
| TCP5BG (DP) | 1.4 ± 0.05** | 54.1 ± 0.02** | 45.8 ± 0.03** | 35.5 ± 2.4* | 42 | 11.6 ± 1* | 16.1 |
| TCP10BG (DP) | 0.9 ± 0.04 | 69.4 ± 0.02** | 30.5 ± 0.02** | 51.8 ± 2.8 | 42 | 8.6 ± 0.3 | 6.3 |
| TCP (RP) | 1.1 ± 0.03 | 62.5 ± 0.01 | 37.3 ± 0.03 | 39.4 ± 2.1 | – | 9.2 ± 0.3 | 8.3 |
| TCP5BG (RP) | 1.6 ± 0.04** | 47.9 ± 0.03** | 52.1 ± 0.02** | 28.9 ± 3.3* | – | 13.7 ± 1.1* | 54.4 |
| TCP10BG (RP) | 0.98 ± 0.05* | 67.7 ± 0.02** | 32.1 ± 0.04** | 47 ± 3.8 | – | 10.9 ± 1.8 | 5.2 |
*
denotes p < 0.05 and
**
denotes p < 0.005; n = 6; (DP) stands for scaffolds with designed porosity and (RP) stands for scaffolds with random porosity, respectively.