Dental implant and method
US4872840A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1987 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Jul 15, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C8/0089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pure titanium implant having tightly captured bone therethrough is provided to dramatically reduce the nuturing period prior to the time that an implant may be utilized, by providing osteointegration or bone growth guided through the implant, in addition to any osseointegration or bone to titanium adhesion. In one embodiment, rings of compacted lyophylised or freeze-dried bone are secured between dove tailed, pure-titanium rings to a central implant shaft to guide bone growth through the implant from one side to the other for improved implant anchoring, without infection or rejection. In another embodiment, the implant includes a pure-titanium body having lateral channels completely through the implant, with bone rigidly secured in the channels to guide bone growth completely through the implant. In a method for implanting, rather than drilling a large hole with a slow-speed drill, a series of small drilled holes create, via osteoclasia, a softened-bone structure into which the implant is forced below bone level after a cavity is prepared by removal of a small amount of softened bone at the implant site. The implant is to be inserted into softened bone structure after two to thre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.