Immediate post-extraction implant

A - Human Necessities – 61 – C

Patent

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Details

A61C 8/00 (2006.01)

Patent

CA 2360250

A submergible or non-submergible ("one stage") screw-type implant (3) for use in the immediate post-extraction site of a patient's tooth. In order to increase the ability of regenerated bone to anchor the implant, an upper portion (9) of the implant has a preferably generally conical shape and has a plurality of spherical projections (22) sintered to its outer surface to make it suitable for bone integration and retention. The lower portion (10) of the implant has a cylindrical shape with threads (13) extending over a portion thereof. A channel (18) is located through the threads and is shaped so that one side forms a cutting edge that makes the lower portion of the implant self-tapping into the bone at the base of the tooth extension socket.

La présente invention concerne un implant à vis (3) noyable ou non noyable ("à implantation directe") pour implantation à l'emplacement d'une dent de patient venant juste d'être enlevée. De manière à augmenter la possibilité d'ancrage sur l'implant d'os régénéré, une partie supérieure (9) de l'implant présente une forme généralement conique ainsi qu'une pluralité de projections sphériques (22) frittées sur sa surface extérieure afin de faciliter la rétention et l'intégration osseuses. La partie inférieure (10) de l'implant possède une forme cylindrique dotée, sur une partie, de spires de filetage (13). Un évidement (18) est pratiqué à travers les spires du filetage de forme telle qu'un côté présente une extrémité coupante, ce qui rend cette partie inférieure autotaraudeuse dans la partie de l'os correspondant à la base prolongée de l'alvéole dentaire.

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