Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1992-06-19
1994-05-31
Wilson, John J.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
A61C 800
Patent
active
053164768
ABSTRACT:
A dental implant for holding a dental prosthesis in place, after implantation within a hole drilled in bone, includes an upper surface, a generally cylindrical portion with a plurality of longitudinal shallow grooves, and an apical portion. The shallow circumferential grooves permit bone to grow entirely therein, so that the entire exposed surface of the implant has bone adhered thereto. The apical portion has a continuous truncoconical surface for diffusing the stresses into the bone. The head and uppermost portion of the cylinder have a smooth metal surface to retard the attachment of bone after implantation, while the remaining portion of the implant has either a roughened metal surface or a bioactive coating, such as hydroxylapatite, fluorapatite, or a bioactive carbon for the purpose of promoting the attachment of bone. A cap, having an outward expanding truncoconical head, is attached to the implant before implantation and left in place during a healing process to keep the upper portion of the implant free of tissues and ready for the attachment of a prosthesis.
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Michael S. Block, DMD; Israel M. Finger, BDS; Mark G. Fontenot, DDS, Meng; John N. Kent, DDS-"Loaded Hydroxylapatite-Coated and Grit-Blasted Titanium Implants in Dogs", The International Journal of Oral and Maxillofacial Implants, vol. 4, No. 3, 1989, pp. 219-295.
Barron Harry W.
Wilson John J.
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