INTRAOSSEOUS DENTAL IMPLANT AND DENTAL IMPLANT SET

INTRAOSSEOUS DENTAL IMPLANT AND DENTAL IMPLANT SET
European Patent Office
Patent number: WO2004037110
Publication date: 2004-05-06
Inventor: METTLER MAX [CH]
Applicant: METTLER MAX [CH]
Classification:
- international: A61C8/00
- european: A61C8/00F2; A61C8/00G1
Application number: WO2003CH00690 20031023
Priority number(s): CH20020001776 20021023
Abstract of WO2004037110

The invention relates to a screw intraosseous dental implant which is characterised by a bone screw (11) having a coronal joint surface (13) and a neck part (67) which can be positioned with a positioning surface (63) on the joint surface (13) and comprises a coronally extending implant neck. Said neck part (67) can be placed on the bone screw (11) and connected thereto by means of a fixing screw (53). The structural boundary between a surface (41) promoting the osseointegration and a hygiene-friendly surface (42) is located on the neck part (67), coronally in relation to the positioning surface (63) and the joint surface (13), the joint between the positioning surface (63) and the joint surface (13) thus fully reaching into the region of the bone. The neck part (67) can be placed on the bone screw (11) in a plurality of relative rotational positions in relation to a rotation about the shank axis (10) of the bone screw. This form enables a number of differently shaped neck parts (67) to be combined in any way with a number of differently shaped bone screws (11), and enables the height of the structural boundary (19) to correspond to the bone line in a very precise manner. In this way, from a medical point of view, the surface structure (41, 42) of the implant advantageously corresponds to the bone line in an optimum manner; from an aesthetic point of view, the crown line between the tooth crown and the implant is adapted to the gum line in an optimum manner; and from a production point of view, the number of parts required to produce a defined number of anatomically adapted implants is reduced. It is thus also possible, for a screw implant, to design the implant neck in such a way that it is bent in relation to the direction of the shank axis of the bone screw (11).