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Method for rapidly preparing zirconia dental prosthesis

A technology of zirconia and prosthetics, which is applied in the field of rapid preparation of zirconia dental prosthetics, can solve problems such as waste of raw materials, achieve the effects of reducing production costs, saving raw materials, and high production efficiency

Active Publication Date: 2016-05-25
中新棠国业(江苏)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention is used for the preparation of zirconia dental restorations, the process is simple, fast and convenient, the production efficiency is high, and at the same time, the problem of waste of raw materials in traditional subtractive production is solved

Method used

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Experimental program
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Effect test

Embodiment 1

[0034] The invention provides a method for rapidly preparing a zirconia dental restoration, comprising the following steps:

[0035] (1) Weighing of raw materials: accurately weigh 50g of nanometer 3Y zirconia powder, 10g of photosensitive resin, and 50g of deionized water;

[0036] (2) Grinding: according to raw material: ZrO 2 Ball = 1:1 ratio, put the prepared raw materials and water into the ball mill, grind for 12 hours, and unload;

[0037] (3) Stale: Stir and stale the ground slurry for 24 hours at a temperature range of 25°C;

[0038] (4) dehydration: the slurry is partially dehydrated to a slurry with a higher viscosity with a water content of 25%;

[0039](5) Forming: The original 3D data of the dental restoration was obtained by X-ray radiation scanning (CT), and after being enlarged by 1.25 times, the 3D model was reconstructed by using Minics software, and input to the 3D printer terminal. The dehydrated slurry was used as raw material. Inkjet 3D ceramic printe...

Embodiment 2

[0045] The invention provides a method for rapidly preparing a zirconia dental restoration, comprising the following steps:

[0046] (1) Weighing of raw materials: accurately weigh 50g of nanometer 3Y zirconia powder, 10g of photosensitive resin, and 50g of deionized water;

[0047] (2) Grinding: according to raw material: ZrO 2 Ball = 1:3 ratio, put the prepared raw materials and water into the ball mill, grind for 12 hours, and unload;

[0048] (3) Stale: Stir and stale the ground slurry for 24 hours at a temperature range of 25°C;

[0049] (4) dehydration: the slurry is partially dehydrated to a slurry with a higher viscosity with a water content of 35%;

[0050] (5) Molding: The original 3D data of the dental restoration is obtained through photographic optical scanning, and after being enlarged by 1.26 times, the 3D model is reconstructed by software such as Imagewarel1.0, and input to the 3D printer terminal. Inkjet 3D ceramic printer printing;

[0051] (6) Drying: d...

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Abstract

The invention relates to a method for rapidly preparing a zirconia dental prosthesis. The method comprises the following steps: 1) raw material weighing: 2) grinding; 3) aging; 4) dehydration: partially dehydrating a slurry to appropriate water content to obtain the slurry containing high viscosity; 5) moulding: inputting three dimensional data of the dental prosthesis to a terminal of a 3D printer, printing the dental prosthesis for moulding by an ink jet type 3D ceramic printer; 6) drying; 7) dyeing or pre-dyeing: if a biscuit is white, dyeing the dental prosthesis by a dyeing solution; if a certain amount of a pigment is added in the slurry, dyeing is not required; 8) sintering: sintering a dyed base substrate under high temperature; 9) glazing or ceramics applying: according to color matching by a patient, selecting zirconia special-purpose ceramics powder for glazing or ceramics applying to obtain the high performance zirconia dental prosthesis. The method for preparing the zirconia dental prosthesis has the advantages of simple process, rapidity and convenience, and high production efficiency, and solves the severe waste problem of raw materials in a traditional production.

Description

technical field [0001] The invention relates to a method for quickly preparing a zirconia dental restoration, which adopts 3D printing technology for molding, has simple process, is fast and convenient, and has high production efficiency, and at the same time solves the serious waste of raw materials caused by traditional subtractive production. Background technique [0002] With the improvement of people's living standards, the application of dental materials is becoming more and more extensive. As a new type of biomaterial, zirconia ceramics have the characteristics of good biocompatibility, high strength, and high toughness, and are a new type of dental restoration material. It can undergo phase transformation under stress induction and has a toughening effect. It is called ductile ceramics. Its strength and toughness are higher than alumina. It is currently the oxide ceramic material with the best mechanical properties, and zirconia is generally white. It is stable and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622B28B1/00
CPCC04B2235/6562
Inventor 孙丽娜郑艳
Owner 中新棠国业(江苏)科技有限公司
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