Selective Bone Formation on Hydroxyapatite-Granule-Implanted Titanium
Hydroxyapatite (HA)-granule-implanted cylindrical titanium composites, which uniformly have HA granules on the curved surface, were formed by a hot pressing using HA-granuleimplantation system under the conditions of 1023 K, 1 h, 1960 N in vacuo. Cracks were not observed in the HA granules. The HA-granule-implanted titanium samples were implanted in a mandible of a dog. After 1 year, new thin bones like pillars were selectively structured on the HA granules with bone induction ability. The HA-granule-implantation technique is expected to be useful for designing shape of bone around titanium implant in order to match living bones.
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
A. Watazu et al., "Selective Bone Formation on Hydroxyapatite-Granule-Implanted Titanium", Key Engineering Materials, Vols. 330-332, pp. 459-462, 2007