Table 8.
Type | Properties | Applications |
---|---|---|
Alumina (Al2O3) | Excellent abrasion resistance and compressive strength. Bioinert. |
Femoral head, knee prosthesis, bone screws and plates, and permeable coatings for stems. |
Zirconia (ZrO2) | High fracture toughness and flexural strength, but low Young's modulus. Bioinert and biocompatible. | Artificial knees, bone screws and plates etc. |
Bioglass | Biocompatible, bioactive and nontoxic. Poor ductility. |
Wound healing, cochlear implants, and peripheral nerve, spinal cord and ligament repair. |
Hydroxyapatite (HA) | Bioresorbable, bioactive and biocompatible; Composition and properties closer to natural bone. | Femoral knee, femoral hip, tibial components, acetabular cup. |
Tri-calcium phosphate (β-TCP) | Bioresorbable, bioactive and biocompatible; Similar composition to natural bone and good osteoconductive. | Femoral knee, hip prostheses, tibial components, bone plates and screws and cardiovascular stents. |