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Moulded parts made of pmma powder as simple dosing aid in the manufacture of dental prostheses

A monomer and solvent technology, used in dental preparations, prostheses, dentistry, etc., can solve problems such as dental technical work coordination errors

Inactive Publication Date: 2014-12-24
HERAEUS KULZER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, fit errors in dental technical work due to the mentioned shrinkage phenomena

Method used

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  • Moulded parts made of pmma powder as simple dosing aid in the manufacture of dental prostheses
  • Moulded parts made of pmma powder as simple dosing aid in the manufacture of dental prostheses
  • Moulded parts made of pmma powder as simple dosing aid in the manufacture of dental prostheses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0055] Preparation of the mixture: A mixture was prepared from 6.5 ml ethanol and 0.5 ml methyl methacrylate at room temperature.

[0056] Preparation of dispersion: Add 100 g of PMMA powder (such as PalaXpress) to the above mixture at room temperature and stir for about 2 minutes for vigorous mixing.

[0057] Preparation of molded parts: Press the dispersion into a mold with the desired geometry. Alternatively, the suspension can be cast in a three-dimensional mold.

[0058] The mold is usually made of plastic and is stable to the added solvent at the corresponding temperature. The preferred mold is made of deformable or elastic plastic. Particularly suitable are three-dimensional silicone molds, because silicone molds are particularly easy to demold. Generally speaking, a metal mold composed of multiple parts, for example, two parts, or a non-deformable mold composed of multiple parts and made of other materials, can also be used. The molds that can be used are not limited to t...

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Abstract

The invention relates to three-dimensional dimensionally-stable moulded parts made of polymeric particles whose particles are connected firmly to each other, at least in part, at the contact sites of the particles, whereby the particles are preferably glued to each other, at least in part, at the contact sites. The pre-packaged moulded parts made of polymeric, powdery particles made of PMMA can take up acrylate or MMA into the porous three-dimensional structure and form a pasty or creamy dough that can be cast, pressed or injected and can be cured by common techniques after the forming. Also subject matters of the invention are the use of and a kit for producing said pasty dough. Said pre-packaged moulded parts are used in methods for producing prostheses, such as dental prostheses, bone cements, investment compounds, in particular of porous substrates, as investment compound in metallography.

Description

Technical field [0001] The present invention relates to a molded body of three-dimensionally stable polymer particles, the particles of which are at least partially firmly connected to each other at the contact points between the particles, preferably the particles are at least partially adhered to each other at the contact points. The pre-combined molded body composed of PMMA polymer powder particles can make acrylic or MMA absorb into the porous three-dimensional structure and form a paste or cream paste that can be poured, pressed or injected. After molding, it is cured by conventional methods. The invention also relates to the application of the paste-like paste and the manufacture of the assembly. The pre-bonded molded body is used to manufacture artificial organs, such as artificial teeth, bone cement, and to manufacture fillings, especially porous matrices, as fillings in metallography. Background technique [0002] Medical artificial organs, such as artificial teeth or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08F120/14C08J9/28A61K6/083A61L27/16A61L27/56
CPCC08J9/24C08J2207/10C08J2333/06A61L27/16A61L24/06A61L2430/12B29L2031/7722B29L2031/7739C08L33/12B29C69/02A61K6/887
Inventor 克劳斯·鲁珀特凯文·克舍尔斯特凡·德凯尔特
Owner HERAEUS KULZER GMBH
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