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Surface treatment method for zirconium oxide body, zirconium oxide veneering porcelain composite material and preparing method thereof

A treatment method and technology of zirconia bodies, which are applied in the field of zirconia ceramic composite materials and their production, and the surface treatment of zirconia bodies, can solve the problems of low bonding strength of decorative porcelain, cracking or falling off of decorative porcelain, and achieve treatment The method is simple and convenient, the bonding strength is improved, and the effect of increasing the bonding strength

Inactive Publication Date: 2012-05-02
陈超 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the restoration obtained in this way, the bonding strength of the decorative porcelain is not high, and the decorative porcelain is easy to crack or fall off

Method used

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  • Surface treatment method for zirconium oxide body, zirconium oxide veneering porcelain composite material and preparing method thereof
  • Surface treatment method for zirconium oxide body, zirconium oxide veneering porcelain composite material and preparing method thereof
  • Surface treatment method for zirconium oxide body, zirconium oxide veneering porcelain composite material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The surface treatment method of zirconia body provided by the invention is divided into two steps.

[0040] Step 1: Fusing a glass-ceramic layer on the surface to be treated of the zirconia body

[0041] First, the glass ceramic powder is mixed with a solvent to make a paste, and evenly coated on the surface of the zirconia body to be treated; then the zirconia body coated with the glass ceramic powder is dried, and then sintered to make the glass ceramic powder Fused on the surface of zirconia;

[0042] Step 2: Acid etching of the zirconia body

[0043] The zirconia body sintered with the glass-ceramic layer is put into the hydrofluoric acid solution, so that the glass-ceramic layer on its surface is completely acid-etched away, and the zirconia substrate is exposed.

[0044] The specific method is: mix IPS.E Max zirliner porcelain powder and pure water at a ratio of 0.2g / 0.1ml to form a uniform paste, and evenly apply it on the surface of the zirconia body. In the G...

Embodiment 2

[0083] The treatment method in Example 1 is applied to the zirconia body, and the treated surface of the zirconia body after treatment is used for bonding decorative porcelain. The specific method is as follows:

[0084] Step 1: Mix Yimei IPS.E Max zirliner porcelain powder and purified water at a ratio of 0.2g / 0.1ml to form a uniform paste, evenly spread it on the surface of zirconia, and sinter it in a 40T porcelain furnace (Germany) according to the following procedures: Pre-drying for 6 minutes → initial temperature 403°C → 40°C / min → final temperature 960°C for 1 minute, → natural cooling to room temperature. The process from applying the porcelain powder is repeated again.

[0085] Step 2: Etching in 10% hydrofluoric acid aqueous solution (HF) for 15 minutes. Rinse with high-pressure air and water for 1 min and dry.

[0086] The thickness of the porcelain powder is about 1.5-3mg / mm on the surface of the zirconia body 2 , spread evenly.

[0087] Step 3: Sinter the de...

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Abstract

The invention provides a surface treatment method for a zirconium oxide body. The method comprises the following steps of: 1, fusing and attaching a ceramic layer on the surface to be treated of the zirconium oxide body; and 2, putting the zirconium oxide body on which the ceramic layer is sintered into a fluohydric acid solution to corrode the ceramic layer on the surface and expose a zirconium oxide substrate. The invention further provides a zirconium oxide veneering porcelain composite material and a preparation method thereof. Before veneering porcelain is sintered on zirconium oxide, the zirconium oxide surface is subjected to the mentioned treatment. The surface treatment method for the zirconium oxide body provided by the invention is simple and convenient; and due to the formation of a rough surface, hard materials such as zirconium oxide can be well bonded with an adhesive, and the bonding strength of the veneering porcelain can be increased greatly.

Description

technical field [0001] The invention relates to a surface treatment method of an object, in particular to a surface treatment method for a zirconia body in order to improve the surface bonding strength. The invention also provides a zirconia-decorated porcelain composite material and a manufacturing method thereof. Background technique [0002] In the prior art, zirconia is used as a restoration, and it is used in industries such as dentistry. Zirconia (ZrO2) is a material with excellent physical and chemical properties such as high strength, high hardness, extremely high wear resistance and chemical corrosion resistance. Yttria locally stabilized zirconia (Y-PSZ) has a flexural strength of over 1GPa and a fracture toughness of over 15Mpa at room temperature. In use, zirconia has technical difficulties in combining with other materials precisely because of its surface inertness. For example, in the field of dentistry, zirconia restorations need to be bonded to the tooth s...

Claims

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Application Information

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IPC IPC(8): C04B41/80C04B41/87
Inventor 陈超姜婷
Owner 陈超
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