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US 6,280,193 B1Granted
Zirconium oxide dental implant with internal thread
AssigneeJeanine Gourlaouen-Preissler
InventorGuy Peltier
Life of this patent
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Abstract
The invention concerns dental implants, more particularly a dental implant (1) comprising an external thread (2) and an internal thread (6). Said dental implant (1) is made of zirconium oxide. The invention also concerns a method for moulding said dental implant using metal inserts (7, 9).
Claims12
A dental implant comprising:
- zirconium oxide having an external thread screwable in the osseous tissues;
- and
- an internal tapping obtained by molding.
A manufacturing process of a zirconium oxide dental implant provided with an external thread and an internal tapping comprising the steps of:
- (a) screwing with centering of an auxiliary hollow insert in a mobile part of the mold of the dental implant thereby making a mobile stamp;
- (b) fixing a molding insert used to reproduce the internal tapping imbedded in the mobile stamp through the auxiliary insert;
- (c) affixing with centering of the mobile part associated with the molding insert on a mold determining the shape of the dental implant;
- (d) sintering by injection in the mold under high pressure of a zirconium oxide based paste and its baking;
- and
- (e) withdrawing the mobile stamp leaving in situ the molding insert.
3 more elements
Dependencies are inferred from the claim text.