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Enossal implant
| Details |
Inventors: Kirsch, Axel;
Assignee:
Primary Examiner: Mancene; Gene
Assistant Examiner: Lepiane; Adriene J.
Attorney, Agent or Firm: Hill, Van Santen, Steadman & Simpson
The invention involves an enossal implant with comprehensive fastening devices for a firmly seated but, if necessary, removable tooth replacement that includes a fastening head and a implant post that can be connected to a base body. According to the invention, the fastening head is fitted with a tapering fitting surface in the direction of the tooth replacement; in particular, a conical surface, by which a reliable connection between the fastening head and the tooth replacement is obtained. Preferably, the fastening head can be rotated with respect to the base body, as with a ball-and-socket mechanism. |
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DETAILED DESCRIPTION An objective of the invention is to produce an improved implant, in which no danger exists that the screw connection between the tooth replacement and the fastening head will loosen.
This objective is fulfilled by the fact that the provision of a fastening head attached to a first end of the implant post, the first end being that end of the implant post which is turned away from the base body.
The fastening head is fitted with a fitting surface tapered in the direction of the tooth replacement.
High frictional forces between the fitting surface and the opposite surface in the tooth replacement, due to a tapered fitting surface on the fastening head, on the one hand, and a corresponding opposite surface in the tooth replacement on the other hand, are achieved when mounting the tooth replacement.
These frictional forces prevent later relative motion between the tooth replacement and fastening head, so that undesired loosening of the fitting connection can no longer occur, largely due to the wedge effect of the fitting connection which can be additionally secured by a adhesive or screw connection between the fastening head and the tooth replacement.
It has been shown to be advantageous if the fitting surface has a conical surface tapered in the direction of the tooth replacement and mates with a corresponding cone/taper surface on the tooth replacement.
This type of conical surface can be relatively large and, additionally, provides a method of centering the tooth replacement in relation to the fastening head.
It has further been shown to be favorable if the implant post is detachable and can be connected to the base body by means of an elastic, deformable middle element.
This way, the risk of relative motions between the tooth replacement and the fastening head are further reduced since the forces acting on the tooth replacement are taken by the elastic deformation of the middle element, so that the fitted connection cannot loosen.
In regard to the elastic, deformable middle element, it is preferably manufactured from a viscous-elastic synthetic, which, in conjunction with geometrical measurements of the middle element, permits simulation of the natural tooth movement between the base body healed into the jaw bone and the tooth replacement, or in some cases, the implant post
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Cosmetic Surgery 
