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A kind of preparation technology of porcelain tooth

A preparation process, technology of porcelain teeth, applied in the direction of dentures, etc., can solve the problems of porcelain teeth easy to collapse, achieve the effect of reducing the collapse of porcelain, reducing the possibility, and reducing the probability of porcelain collapse

Active Publication Date: 2020-10-30
厦门市仿真美义齿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation process of porcelain-fused-to-metal teeth, which forms a metal oxide film on the surface of the metal inner crown, so that the ceramic outer crown is firmly combined with the metal oxide film, and solves the problem that the porcelain-fused-to-metal teeth are easy to collapse during the preparation process. question

Method used

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  • A kind of preparation technology of porcelain tooth
  • A kind of preparation technology of porcelain tooth
  • A kind of preparation technology of porcelain tooth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A preparation process for porcelain teeth, comprising the following steps:

[0048] A. Making the metal inner crown: use CAD / CAM technology to make the model of the metal inner crown, in which the thickness of the metal inner crown is controlled to 0.5mm, and the platinum powder used to make the metal inner crown is sintered and melted in a crucible, and then melted The platinum is pressed and formed according to the designed model; then the sintered and formed platinum is trimmed using a grinding machine with a rotation speed of 30,000r / min and a consistent grinding direction to obtain a metal inner crown;

[0049] B. Surface sandblasting: The surface of the metal inner crown obtained in A is sandblasted with a dental sandblasting gun, and the sandblasting pressure of the sandblasting gun is 3Pa during sandblasting, and the sandblasting head is inclined at 45°. Stop sandblasting when the surface color of the metal inner crown is uniform gray;

[0050] C. Heat treatmen...

Embodiment 2- Embodiment 7

[0054] Embodiment 2-embodiment 7 adjusts the condition of heat treatment on the basis of embodiment 1, and concrete adjustment situation is as shown in the table below:

[0055]

Embodiment 8

[0057] The difference from Example 1 is that in this example, during heat treatment, hydrogen peroxide is sprayed from top to bottom on the surface of the metal coping through a high temperature resistant nozzle.

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Abstract

The invention discloses a preparation technology for porcelain teeth, and relates to the technical field of dental restoration. The preparation technology is technically characterized by comprising the steps of manufacturing a metal inner crown, carrying out sand blasting on the surface, carrying out heat treatment, carrying out surface cleaning, and sintering a ceramic outer crown so as to obtaina finished product of the porcelain tooth. According to the preparation technology, through a mode that the metal inner crown is subjected to sand blasting treatment and then is subjected to heat treatment, a metal oxide film is formed on the surface of the metal inner crown, so that the bonding strength between the ceramic outer crown and the metal oxide film is improved, and therefore the probability that the porcelain teeth are fractured is lowered.

Description

technical field [0001] The invention relates to the technical field of tooth restoration, in particular to a preparation process of porcelain-fused-to-metal teeth. Background technique [0002] With the continuous development of science and technology and the improvement of people's living standards, dental restoration materials have attracted more and more attention. Among them, porcelain teeth are restorations made of low-melting porcelain and metal underlying materials, which combine the strength of metal and the beauty of porcelain. It is one of the most widely used restorations in fixed oral restorations today. [0003] The traditional preparation process of porcelain teeth mainly includes: making metal inner crown→heat treatment of metal inner crown→sandblasting surface→ultrasonic cleaning or steam cleaning→sintering ceramic outer crown→obtaining finished porcelain tooth. [0004] When the above-mentioned preparation process sinters the ceramic outer crown, the cerami...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C13/083
CPCA61C13/0835
Inventor 蔡坤灿
Owner 厦门市仿真美义齿科技有限公司
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