Zirconia surface processing method

Abstract

The invention discloses a zirconia surface processing method, and belongs to the field of dental repairing technologies. The method comprises the steps that processing treatment is conducted on a dental zirconia block, the dental zirconia block is ground into a zirconia dental crown; the dental crown is dyed by using zirconia dyeing liquid, the dyeing liquid is dried, and sintering processing is conducted on zirconia by using a zirconia crystallizing furnace; the zirconia dental crown is soaked in a surface treatment solution to ensure that the inner and outer surfaces of the dental crown arein contact with the solution, the inner surface of the dental crown is used for bonding to an abutment tooth, and the outer surface is used for porcelain coating or glaze coating; the zirconia dentalcrown on which surface processing is conducted is taken out and washed, and porcelain coating or glaze coating are conducted. By bonding the inner surface of the zirconia dental crown to the abutmenttooth, porcelain coating or glaze coating are conducted on the outer surface after surface acid etching processing is conducted, the bonding intensity between the abutment tooth and between the dentalcrown and the porcelain layer and the glaze layer can be improved, and the appearance and durability of a dental repairing body are improved.

Description

technical field [0001] The invention discloses a method for surface treatment of zirconia, in particular to the technical field of dental restoration. Background technique [0002] Dental restoration is the process of restoring one or more tooth structures that have been damaged by natural decay, decay, or external trauma. Dental restorative materials have standard forms and characteristics that can be fabricated and applied to damaged teeth for restoration purposes. Dental restoration materials, including filling or casting materials, can replace damaged tooth structures. Traditional restoration materials use metal or resin, which lack sufficient strength and aesthetics, and are prone to discoloration or fracture. In addition, these metal and resin restorations are aesthetically pleasing. Not very suitable for upper anterior teeth. Precious metals, such as gold alloys, are widely used for dental veneers, inlays, veneers, posts and crowns. Precious metal alloys are more ex...

AI Technical Summary

Problems solved by technology

Its bending strength is 900 to 1100 MPa, and its fracture toughness is 8 to 10 MPa, making it a suitable material for direct production of full crowns, but due to the compact structure of zirconia after sintering and crystallization, the hardness is very high , it is difficult to treat the surface, resulting in poor aesthetic effect, because there is no glass ion in the zirconia material, so the existing acid etchant can not do acid etching on the surface of zirconia, so the long-term bonding effect is not ideal , zirconia inlays and zirconia veneer restorations cannot guarantee the adhesion, but there is no product on the market that does not have any technology, whether chemical or physical, that can etch zirconia after sintering and crystallization Tooth surface, the ability to treat the surface of zirconia has become a big problem

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