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Method to design a connector

一种连接体、平面法线的技术，应用在牙科假体、医药科学、牙科等方向，能够解决连接体制造麻烦等问题

Inactive Publication Date: 2008-05-14
DEGUDENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A related method leads to extremely satisfactory results for the cap
But it caused trouble in the manufacture of connectors

Method used

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Examples

Experimental program
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Embodiment Construction

[0055] The method according to the invention for constructing a connection between elements of a technical dental reconstruction is purely explained with the aid of the drawing, wherein the connection itself is finally produced with the adjacent elements together with the CAD-CAM method , as in the prior art.

[0056] The production can in this case be carried out in a type known, for example, from WO-A-99 / 47065 or WO-A-03 / 007834.

[0057] FIG. 1 shows a plan view of a four-part dental bridge 10 as a technical dental restoration to be produced. This dental bridge comprises a coping 12,14, an intermediate piece or denture 16,18 and connecting members 20,22, extending between the coping 12,14 and the intermediate piece 16,18 and between the intermediate piece 16,18 itself. twenty four. The position of the prepared stump surrounded by the caps 12, 14 is determined by taking an impression or a scan of the stump, either by scanning the stump directly, or by scanning a positive mo...

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PUM

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Abstract

The invention provides a method for designing a connector between a first and a second element of a dental restoration, such as a connector between coping and coping, or coping and intermediate part (pontic), or intermediate part and intermediate part of a bridge, which is characterized by the steps of computing a (first) model of the first element and a (second) model of the second element, defining a connecting straight line between the first model and the second model, computing edge curves (gamma 0, gamma4 ) on the first model and the second model, whereby the edge curves are defined by origins of surface normal vectors of the models, which satisfy boundary conditions relative to the connecting line, computing offset curves (gamma 1, gamma3 ) on the first model and the second model from the first edge curves, and connecting the first edge curves and the offset curves of the first model and of the second model and computing the connector on the basis of the course of the connection between the curves.

Description

technical field [0001] The invention relates to a method for constructing a connecting body between a first element and a second element of a dental reconstruction, for example in the coping and coping of a dental bridge, or Method for constructing the connecting body between the top cover and the middle part (denture, Pontic), or the middle part and the middle part. Background technique [0002] Dental reconstructions are mostly manufactured by CAD / CAM (Computer Aided Design / Computer Aided Manufacturing). In this case, the physically modeled stump is scanned in order to calculate from the point cloud the model used to manufacture the dental substitute. See, for example, WO-A-99 / 47065 or WO-A-03 / 07834 in this regard. [0003] A related method leads to extremely satisfactory results for copings. But it caused trouble in the manufacture of the linker. In the prior art, therefore, the connection body is an almost uniform geometric body, which consists of a tubular section c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C13/003A61C13/00A61C5/77
CPCA61C13/0004A61C13/275A61C13/1016A61C13/12A61C13/34A61C13/00
Inventor M·梅尔A·希尔伯特
Owner DEGUDENT