Table 6 Composition (wt%) of representative hard tissues [142, 159]
| Â | Composition (trace elements: Zn2+, Cu2+, Fe3+, Sr2+, etc.) | ||||||||
|  | Ca2+ | PO43− | Na+ | Mg2+ | K+ | CO32− | F− | Cl− | P2O74− |
Bone | 34.8 | 15.6 | 0.9 | 0.72 | 0.03 | 7.4 | 0.03 | 0.13 | 0.07 |
Dentin | 35.1 | 16.2 | 0.6 | 1.23 | 0.05 | 5.6 | 0.06 | 0.01 | 0.10 |
Enamel | 36.5 | 17.7 | 0.5 | 0.34 | 0.06 | 3.5 | 0.01 | 0.30 | 0.02 |
| Â | Total inorganic (mineral) | Total organic | Absorbed H2O% | ||||||
Bone | 65.0 | 25.5 | 10.0 | ||||||
Dentin | 70.0 | 20.0 | 10.0 | ||||||
Enamel | 97.0 | 1.5 | 1.5 | ||||||