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Method for making semi-finished dental base

A semi-finished product, base technology, applied in dentistry, dental prosthesis, manufacturing tools, etc., can solve the problems of high material consumption, regular refurbishment of milling cutter head wear, and increased operating costs of milling machines, and achieve low-cost effects.

Active Publication Date: 2018-12-25
HERAEUS KULZER GMBH
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Problems solved by technology

The disadvantage of this method is also on the one hand the high material consumption, which can often exceed 90% depending on the anatomy of the individual patient
This, on the other hand, leads to very long machining times for CAM devices, since a lot of material has to be removed
In addition, the wear of each milling cutter is quite serious, thereby increasing the operating cost of the milling machine
[0009] The downside at this point is that it takes quite a long time until the tooth base is made
In addition, blank machining wears out the milling heads and must be periodically refurbished

Method used

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  • Method for making semi-finished dental base

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Embodiment Construction

[0058] In a first step, an intraoral scanner 2 is used to acquire a three-dimensional image of the oral cavity of the patient 1 . Mouth at least partially devoid of teeth. The intraoral scanner 2 can be, for example, a suitable stereo camera. The image data of the intraoral scanner 2 is transmitted to the computer 4, and the computer calculates a three-dimensional digital oral model of the oral cavity part related to prosthesis production according to the image information.

[0059] Based on the oral cavity model and possibly other data such as data relating to the occlusion, position and orientation of the denture to be inserted, the position of markers (for adjusting the orientation of the denture base to be produced), with the aid of a bite mold including the occlusal embankment (Bisswall) (Bissschablone) and / or generally at the patient for the adjustment of the articulator (Artikulator), the computer 4 calculates the first digital three-dimensional of the denture base mat...

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Abstract

The invention relates to a method for making a dental base semi-finished product (6), comprising the following steps: 1) collecting and digitizing the oral condition of a patient (1), generating a digital three-dimensional oral model of the patient (1), or providing the patient (1) 2) performing a first calculation in which a digital three-dimensional first model (A) of the denture base is calculated, wherein the oral model is based on the oral condition in the first calculation; 3) performing a second calculation in which a digital three-dimensional second model (B) of the base semi-finished product is calculated from the first model (A) of the denture base, wherein on the three-dimensional model (A) of the denture base at least Add volume locally; 4) make the dental base semi-finished product (6) by rapid prototyping method, wherein CAM method is used in the rapid prototyping method and the digital three-dimensional second model (B) of the base semi-finished product is based on the CAM method. The invention also relates to a device for carrying out this method and a base semi-finished product produced by this method.

Description

technical field [0001] The present invention relates to a method of making a semi-finished dental base and a method of making a denture base. [0002] The invention also relates to a computer-controlled device for carrying out a method for making a dental base blank or a denture base and a base blank and a denture base produced by such a method. [0003] Therefore, the present invention relates to the production of batch prefabricated semi-finished products for the production of individualized denture bases for further processing to obtain partial plastic dentures (half dentures) and complete plastic dentures (full dentures) by means of CAM methods (CAM - Computer Aided Manufacturing ) are machine-made. Individualized denture bases can also be used as tooling models made of wax, with the aid of which refinements are carried out on the patient and as a tool for the manufacture of partial plastic dentures (half dentures) or complete plastic dentures ( complete denture). In th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C13/00
CPCA61C13/0004A61C13/0006A61C13/0022A61C13/0019A61C13/0018A61C13/0015A61C13/0013A61C9/004A61C13/0001A61C13/01
Inventor 乌韦·伯姆马尔科·斯帕茨
Owner HERAEUS KULZER GMBH
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