Zirconia ceramic slurry, preparation method thereof, false tooth and false tooth preparation method

Abstract

The invention discloses zirconia ceramic slurry, a preparation method thereof, a false tooth and a false tooth preparation method. The zirconia ceramic slurry is prepared from the following raw materials: yttria-stabilized zirconia, a dispersing agent, an ultraviolet absorbent, a photoinitiator, photosensitive resin, a toughening agent, a bonding aid, a defoaming agent and a silane coupling agent, the invention relates to a light-sensitive ceramic material, which is prepared from the following components in parts by weight: 60 to 75 parts of yttria-stabilized zirconia, 2 to 4 parts of dispersing agent, 1 to 3 parts of ultraviolet absorbent, 3 to 5.2 parts of photoinitiator, 18 to 26 parts of photosensitive resin, 3 to 6 parts of toughening agent, 5 to 11.4 parts of bonding aid and 2 to 2.6 parts of defoaming agent, wherein the yttria-stabilized zirconia is prepared from the following components in parts by weight: 60 to 75 parts of yttria-stabilized zirconia, 2 to 4 parts of dispersing agent, 1 to 3 parts of ultraviolet absorbent, 3 to 5.2 parts of photoinitiator, 18 to 26 parts of photosensitive resin, 3 to 6 parts of toughening agent, 5 to 11.4 parts of bonding aid and 2 to 2.6 parts of defoaming agent; the weight part of the silane coupling agent is 1-3 parts; and the particle size of the yttrium oxide-stabilized zirconium oxide is 50-100 nm. The slurry can effectively overcome the defect that traditional zirconium oxide slurry is easy to settle after being placed for a long time.

Description

technical field [0001] The invention belongs to the technical field of bioceramic materials, and particularly relates to a zirconia ceramic slurry, a preparation method thereof, a denture and a preparation method of the denture. Background technique [0002] With the improvement of living conditions, people have higher demands and requirements for dental aesthetics, and dental veneer is one of the main ways to solve the current dental aesthetics. In the oral field, bioceramics have become the preferred material for the preparation of dental veneers due to their biocompatibility, good wear resistance, corrosion resistance and aesthetic properties similar to natural teeth. [0003] At present, the bioceramic materials used to make dental veneers mainly include: lithium disilicate glass ceramics, alumina ceramics and zirconia ceramics. Among them, lithium disilicate glass ceramics and alumina ceramics have problems of high brittleness and low strength, which cannot meet the st...

AI Technical Summary

Problems solved by technology

Among them, lithium disilicate glass ceramics and alumina ceramics are relatively brittle and low in strength, which cannot meet the stability requirements of dental veneers. Zirconia has high density, high strength, strong crack resistance and strong curing properties. It is considered to be the most effective bioceramic material to solve the problem that ceramics cannot be used as long bridges. Researchers have further obtained dentures with higher stability and biocompatibility by further mixing tougheners into zirconia ceramic materials.

[0004] However, most of the current dentures are obtained by using zirconia ceramic materials through binder injection and material extrusion injection technology. There are many problems such as large free accumulation gaps, large porosity after sintering, insufficient hardness, and unsightly appearance.

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