Method for producing zirconia denture through rapid prototype of gel-casting

A technology of gel injection molding and zirconia, which is applied in medical science, dentistry, dental prosthesis, etc., can solve the problems of high processing cost, low manufacturing efficiency, and large material waste, and achieve low manufacturing cost, high manufacturing efficiency, The effect of high green body strength

Inactive Publication Date: 2012-10-31
SHANGHAI I DENTAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this molding method also has the disadvantages of large material waste, high processing cost, and low manufacturing efficiency.

Method used

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  • Method for producing zirconia denture through rapid prototype of gel-casting
  • Method for producing zirconia denture through rapid prototype of gel-casting

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Embodiment Construction

[0023] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, the method provided by the present invention for preparing dentures by gel-casting zirconia rapid prototyping comprises the following steps:

[0025] Step 1, collect the 3D data of the oral cavity through the computer, and generate the 3D CAD virtual model 1 of the required denture; Step 2, prepare the male model of the required denture according to the 3D CAD virtual model 1 of Step 1; Prepare the female mold 41 of the required denture from the positive mold; step 4, perform injection 5 through the gel injection molding process, that is, inject the colloidal slurry containing zirconia into the female mold 41 of step 3, and then add triggering agent and heat to induce polymerization reaction 6, so that the colloidal slurry containing zirconia is solidified; step 5, the cured zirconia is demolded and dried 7...

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Abstract

The invention discloses a method for producing zirconia denture through rapid prototype of gel-casting. The method comprises the following steps of step one, collecting three-dimensional data of an oral cavity through a computer to generate a three-dimensional computer-aided design (CAD) virtue model of the required denture; step two, producing a male die of the required denture according to the three-dimensional CAD virtue model obtained in the step one; step three, producing a female die by wrapping the male die obtained in the step two; step four, injecting zirconia colloidal slurry into the female die obtained in the step three through a gel-casting process, and performing heating to induce a polymerization reaction to enable the zirconia colloidal slurry to be cured; step five, demoulding and drying the cured zirconia to obtained a blank of the required denture; and step six, sintering the blank to obtain the zirconia denture. The method for producing the zirconia denture through the rapid prototype of the gel-casting has the advantages of being high in material utilization rate, producing efficiency and product density, and good in strength.

Description

technical field [0001] The invention relates to a method for preparing zirconia dentures, in particular to a method for preparing dentures by gel injection molding zirconia rapid prototyping. Background technique [0002] Dentures currently used clinically usually use cast-type all-ceramic inner crowns (i.e. cast porcelain) to make dentures. The cast porcelain material is relatively transparent, and it is not suitable for cast porcelain restorations for teeth with darker colors; because cast porcelain materials The strength is not enough, the posterior teeth are not suitable for cast porcelain restoration, and the denture fixed bridge structure made of cast porcelain material can only be 3 units at most, that is, the denture fixed bridge structure including a single inner crown (including inner crown and two sides) support body). At present, there are also dentures that use alumina materials to make inner crowns, but because the strength of alumina materials is not high eno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C13/20A61C13/08
Inventor 马培龙
Owner SHANGHAI I DENTAL TECH CO LTD
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