Table 1.
Composition and characteristics of the bone graft substitutes used in this study
| BGS | Micropore size | Macropore size | Resorption |
| β-TCP | < 5 μm | 55% inter-granular | 9-12 mo |
| CS | NA | 55% inter-granular | 1-3 mo |
| Highly porous (90% porosity) β-TCP | 1-100 μm | 100-1000 μm | 4 mo |
| HA 60%/β-TCP 40% (HA/TCP) | < 5 μm | 400-600 μm | |
| HA | - | 280-770 μm | yr |
| PG1 | 250 μm | 75% | 4-8 mo |
| PLGA | - | - | 1-6 mo |
1
Polygraft [2.5% poly (D,L-lactide-co-glycolide), 10%CS, 12.5% polyglycolide]. BGS: Bone graft substitutes; β-TCP: β-tricalcium phosphate; CS: Calcium sulphate; HA: Hydroxyapatite; PLGA: Poly (Lactide-co-Glycolide); PG: Polygraft.