Dentistry – Prosthodontics – Dental implant construction
Patent
1993-06-25
1995-12-26
O'Connor, Cary E.
Dentistry
Prosthodontics
Dental implant construction
433173, 433174, 623 16, 205318, 2041815, A61C 800
Patent
active
054782376
ABSTRACT:
An implant comprises and implant base body, at least a surface of which is composed of titanium or titanium alloy, and an anodic oxidation film formed on the surface, the film containing Ca and P. The implant may further comprise a calcium phosphate compound such as hydroxyapatite precipitated on the anodic oxidation film. The implant may be prepared by subjecting the base body to anodic oxidation in an electrolyte containing Ca compound and P compound, thereby forming an anodic oxidation film containing Ca and P. In addition, the film may be subjected to a hydrothermal treatment, thereby forming a film of a calcium phosphate compound such as hydroxyapatite on the anodic oxide film.
REFERENCES:
patent: 3969195 (1976-07-01), Dotzer et al.
patent: 4846837 (1989-07-01), Kurze et al.
patent: 5185075 (1993-02-01), Rosenberg et al.
patent: 5205921 (1993-04-01), Shirkanzadeh
Ishizawa et al, "Formation and Evaluation of Titanium Anodic Oxide Film Containing Ca and P," Bioceramics, vol. 5, Proceedings of the 5th International Symposium on Ceramics in Medicine, Nov. 1992.
Buser et al., "Influence of Surface Characteristics on Bone Integration of Titanium Implants. A Histomorphometric Study in Miniature Pigs," Journal of Biomedical Materials Research, vol. 25, 889-902 (1991).
Nikon Corporation
O'Connor Cary E.
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