SU1583100A1 - Method of making dental prosthesis - Google Patents

Abstract

This invention relates to dental prosthetics and is intended for the manufacture of dental prostheses with high aesthetic characteristics. The purpose of the invention is to improve the quality of dental prostheses. The method consists in the fact that crowns are modeled first from molten wax, wax is converted into plastic, which is a mixture of acrylic plastic 80-90% and porcelain mass 10-20%, by polymerization at a temperature of 100 ° C, after cooling the cell the prosthesis is mechanically processed, the gypsum is removed, then it is fitted to the working model of the prosthesis, the final anatomical shape is modeled with molten base wax, the form is again filled with a mixture of 85-95% acrylic plastic with a crosslinking agent and porcelain oh 5-15%, is polymerized at a temperature of 100 ° C, and after cooling as it forms the prosthesis is removed from the cell. From the resulting prosthesis, remove the excess to the desired shape and polish.

Description

The invention relates to medicine, specifically dental prosthetics, and is intended for the manufacture of dental prostheses with high aesthetic characteristics.

The aim of the invention is to improve the quality of dental prostheses.

The method of making dentures is that the crowns are modeled first from molten wax, the wax is converted into plastic by polymerization at 100 ° C, and the mold is filled with a mixture of plastic and plastic. masses of acrylic group 80-90%, porcelain mass 10-20%, after cooling the cell, remove the prosthesis, mechanically process, remove the remains of gypsum, fit the working model of the prosthesis, then model the final anatomical form with molten base wax, again fill the form with an acrylic plastic mixture groups of 85-95% with a cross-linking agent and a porcelain mass of 5-15%, are polymerized at 100 ° C, and after cooling the mold, the prosthesis is removed from the cuvette.

The use in the proposed method of a mixture of acrylic plastic with a porcelain mass makes it possible to obtain crowns that are stronger, less traumatic, with a fluorescent effect inherent in the shine of natural teeth, and reduce the cost of prosthetics.

The method is carried out as follows.

In addition, a plaster model is made from the grind teeth of the mold. According to the model, the necks of the teeth are engraved, their length is 1 mm. Simulate the first layer of

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with

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molten base wax, wax is converted into plastic by polymerization, the mold is filled with the first layer of a mixture of acrylic plastic and porcelain mass in the ratio (80-90): (10-20)%, after cooling the cell, remove the prosthesis and remove the excess gypsum, prosthesis fit the working model, create the final anatomical form with molten base wax, cast in a cuvette and fill the form with a second layer of the mixture of acrylic plastic and porcelain mass in the ratio of components (85-95) :( 5-15)% and polymerize at 100 ° C after ost Vani prosthesis forms is recovered from the cell, finally to modify the desired shape, polished and washed.

EXAMPLE 1. According to a cast of ground teeth, a plaster model is obtained, the necks of the ground teeth are engraved according to the model, and lengthened by 1 mm. The first layer of molten wax is modeled, the wax is converted into plastic by polymerization at 100 ° C, the first layer of the acrylic plastic mixture is filled with 80% of the porcelain mass of 20%, after cooling the cell, the prosthesis is removed, mechanically processed, the gypsum is removed, then it is sucked on the working model of the prosthesis, create the final anatomical shape of the teeth of the prosthesis, simulate the molten base wax and fill the form with a second layer of the mixture, the composition of which is: plastic acrylic group (Simna) 90% with a crosslinking agent (porcelain Mass) 10% is polymerized at 100 ° C for 40 minutes, after cooling, remove the prosthesis from the cuvette, remove the excess to the desired shape and polish,

The prosthesis made by the proposed method has a high transparency of the cutting edge of the tooth, is durable, in terms of aesthetic properties (gloss and color) is close to the natural.

EXAMPLE 2. According to the impression from the ground teeth, a plaster model is obtained, the composition of the mixture is also processed, as in the first example, when the form is first filled: plastic of acrylic group is 85%, porcelain weight is 15%, then treatment is carried out and in the first example, and the composition of the mixture during the second filling: acryloxide is 90% and porcelain weight is 10%.

The resulting dentures have a natural luster, color, durable, wear-resistant. Example The processing of the impression is carried out by the generally accepted method, but the composition of the mixture for the first filling of the form is taken in the following ratios: plastic 90%, porcelain mass 10%, and for the second filling the composition of the mixture is taken in ratios: plastic (with a peroxide indicator ) 95%, porcelain mass 5%.

The resulting dentures have a natural color, durable, wear-resistant. For the manufacture of prostheses, a plastic of an acrylic group is used, for example, 5 Simna acryloxide, a fluorine-containing hot curing copolymer, porcelain (powder), which contains,%:

Feldspar74-82

Kvarts13-21

0 Kaolin 1.5-3.0

Lithium carbonate1.0-1.5

Magnesium oxide 1.0-2.5

A mixture of acrylic plastic with porcelain is produced by mechanical mixing of a 5 van.

Claims (1)

The proposed method of making prostheses allows to increase the mechanical and aesthetic characteristics, the prostheses are characterized by high durability and resistance to external influences. Formula of the invention A method for the manufacture of dental prostheses by making an impression of a working model of the tooth, multilayer formation of crowns on a porcelain mass followed by heat treatment and correction, characterized in that, in order to improve the quality of prostheses, crowns are first modeled from molten water. ka, wax is converted into plastic by polymerization at a temperature of 100 ° C, the mold is filled with a mixture of acrylic plastic of 80-90% and porcelain mass of 10-20%, after cooling the cuvette, 5 the prosthesis is drawn, mechanically processed, the remaining gypsum is removed, fit the working model of the prosthesis, then model the final anatomical form with molten base wax and again fill the form with a mixture of 85-90% acrylic plastic with a cross-linking agent and a porcelain mass of 5-15%, polymerized at a temperature of 100 ° C, after cooling forms pr mes recovered from kyu- 5 Veta ..