Method for manufacture of removable dental prosthesis by moulding with the aid of mould formed by additive manufacture

A manufacturing method, additive manufacturing technology, applied in the manufacture of tools, dentures, additive manufacturing, etc., which can solve the problems of heavy, long and boring manufacturing

Active Publication Date: 2019-04-02
循环参考中心公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Therefore, the manufacture of removable dentures is a long, tedious and tiresome process which frustrates many dental technicians

Method used

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  • Method for manufacture of removable dental prosthesis by moulding with the aid of mould formed by additive manufacture
  • Method for manufacture of removable dental prosthesis by moulding with the aid of mould formed by additive manufacture
  • Method for manufacture of removable dental prosthesis by moulding with the aid of mould formed by additive manufacture

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Experimental program
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Effect test

no. 1 approach

[0090] According to the first embodiment of the present invention Figure 1-10 A case of a method of manufacturing a complete denture, here an upper jaw, is shown. Figure 1-6 shows the CAD phase of the generative model, while Figure 7-10 The actual manufacturing phases in the strict sense are shown, including the actual making of the molds by additive manufacturing and then the actual making of the dentures with the help of the molds. Figure 11 The situation of two complete dentures obtained by the method of the present invention are upper jaw and lower jaw respectively, the lower jaw denture has been compared with the Figure 1-10 The steps shown are made in the same manner as when manufacturing dentures.

[0091] Such as figure 1 As shown, a digital file representing a model 10 of a three-dimensional removable denture has been created by a computer-aided design software (CAO) such as or The type of software is implemented in STL format. figure 1 The 3D impressio...

no. 2 approach

[0122] According to the second embodiment of the present invention Figures 12 to 16 The case of a method of manufacturing a partial denture with a Stellite body 22 , here an upper jaw, is shown. Figures 12 to 16 All shown before molding ( Figures 12 to 14 ) and after molding ( Figure 15 and 16 ) A designed mold 20 made by additive manufacturing.

[0123] therefore, Figure 12 Schematically shows an exploded perspective view of components forming a denture mold 20, which are an upper half-shell 21 (gingival part) and a lower half-shell 23 (teeth part) obtained after modeling, and a stellite body 22 . According to a slightly different perspective on the Figure 13 The bottom half-shell 23 is shown on top, which allows a better understanding of its shape. Stellite body 22 has been designed from the stamping step, as known to those skilled in the art.

[0124] The step of taking an impression is carried out by scanning directly in the oral cavity by an intraoral scanne...

no. 3 approach

[0137] According to the third embodiment of the present invention Figures 17 to 28 Shown is the case of a method of manufacturing a complete denture, here of the upper jaw, comprising support bars 49 for fixing the denture in the oral cavity by cooperating with six implants present in the jaw. Figures 17 to 2 3 shows the CAD phase which produces the model, while Figure 24-28 The actual manufacturing phase in the strict sense is shown, which consists of actually making the mold by additive manufacturing and then actually making the dentures with the help of the mold.

[0138] The support rod 49 is made by additive manufacturing. Support rods can also be made by lost wax casting.

[0139] Figure 17 A perspective view of the first member 37 (gingival part) of the denture model realized based on the impression-taking step is schematically shown. The upper portion 37 includes a portion 37a corresponding to the gum, a portion 37b corresponding to the palate, and a peripheral...

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Abstract

The invention relates to a method for manufacture of a removable dental prosthesis (9) by moulding, the method comprising: a step of digital modelling of a prosthesis model (10'); a step of producinga mould (3, 4) comprising a lower half-shell (3) corresponding to a tooth part of the prosthesis and an upper half-shell (4) corresponding to a gum part of the prosthesis, the two half-shells being able to be joined together by affixing one to the other, thereby forming an impression of the prosthesis, the step comprising digital modelling of a model of the mould, followed by additive manufactureof at least the lower half-shell, and a step of producing the prosthesis, the step comprising in succession at least one provision of at least one artificial tooth, positioning of the artificial toothin a seat of the lower half-shell (3), assembling the mould and pouring a filler material into the mould. Removable dental prosthesis (9) obtained by the method.

Description

technical field [0001] The present application relates to a production method for producing removable dentures by means of molds realized at least partially by additive manufacturing. [0002] The present application relates more particularly to a method of manufacturing removable dentures by moulding. Background technique [0003] A denture is a device that replaces at least some of your natural teeth. [0004] Removable dentures are dentures that can be removed from the mouth eg for daily maintenance or simply for sleeping, or by unscrewing the implants. [0005] When dentures replace all the teeth, they are called removable complete dentures or complete dentures, whether they are upper dentures for the upper half of a set of dentures or lower dentures for the lower half of a set of dentures. [0006] When it only involves replacing one or more teeth, it is called a removable partial denture. [0007] Removable partial dentures, for example, include a support rod (or st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C13/00A61C13/08A61C13/16A61C13/20B29C67/00A61C8/00A61C13/01A61C13/10A61C13/225
CPCA61C8/0048A61C13/0004A61C13/0013A61C13/04A61C13/1003A61C13/16A61C13/2255B29C64/00B33Y80/00A61C13/081A61C13/26B33Y50/00B29C64/124B29C64/386A61C13/34B29C33/3842B29K2433/08
Inventor A·弗雷斯特
Owner 循环参考中心公司
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