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A kind of dyeing agent and dyeing method for three-dimensional dyeing of zirconia ceramic crown

A technology of zirconia ceramics and staining agent, which is applied in the field of ceramic teeth, can solve problems such as internal stress cracks in teeth, affect the strength of restorations, and cannot withstand high stress, etc., to achieve improved mechanical strength, uniform and durable staining, and not easy to fall off Effect

Active Publication Date: 2022-07-05
嘉兴饶稷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ceramic crown processed by the pre-sintering method needs to be machine-cut to make the crown meet the required shape; however, this method requires many cutting and grinding processes, and improper operation can easily cause internal stress and tip cracks inside the tooth , affect the strength of the restoration, and cannot withstand the high stress generated during chewing; as a means of rough machining, cutting has poor precision

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A coloring agent for three-dimensional staining of zirconia ceramic crowns, comprising the following components calculated in parts by weight: including 1000 parts of water, 30 parts of polyethylene glycol, 100 parts of glycerin, 25 parts of zirconia, 30 parts of erbium oxide, and nitric acid 20 parts of salt, 1 part of indicator; Described nitrate is one or more of erbium nitrate, ferric nitrate, zinc nitrate; Concretely, described nitrate is erbium nitrate, ferric nitrate, zinc nitrate according to mass ratio is 1 :1:0.2 mixed composition.

[0021] A dyeing method for three-dimensional dyeing of a zirconia ceramic crown, comprising the following steps:

[0022] S1. Configuration of the dyeing agent: using water as a solvent, add zirconia, erbium oxide, and nitrate to the water in sequence, stir until there are no particles, continue to add polyethylene glycol, glycerin and indicator, and continue to stir until completely dissolved to obtain oxidized Staining agent fo...

Embodiment 2

[0027] A coloring agent for three-dimensional staining of zirconia ceramic dental crowns, comprising the following components calculated in parts by weight: including 1000 parts of water, 50 parts of polyethylene glycol, 150 parts of glycerin, 80 parts of zirconia, 60 parts of erbium oxide, and nitric acid. 100 parts of salt, 6 parts of indicator; Described nitrate is one or more of erbium nitrate, ferric nitrate, zinc nitrate; Concretely, described nitrate is erbium nitrate, ferric nitrate, zinc nitrate according to mass ratio is 1 :0.5:0.6 mixed composition.

[0028] A dyeing method for three-dimensional dyeing of a zirconia ceramic crown, comprising the following steps:

[0029] S1. Configuration of the dyeing agent: using water as a solvent, add zirconia, erbium oxide, and nitrate to the water in sequence, stir until there are no particles, continue to add polyethylene glycol, glycerin and indicator, and continue to stir until completely dissolved to obtain oxidized Stain...

Embodiment 3

[0034] A coloring agent for three-dimensional staining of zirconia ceramic crowns, comprising the following components by weight: 1000 parts of water, 60 parts of polyethylene glycol, 200 parts of glycerin, 80 parts of zirconia, 100 parts of erbium oxide, and nitric acid. 90 parts of salt, 5 parts of indicator; Described nitrate is one or more of erbium nitrate, ferric nitrate, zinc nitrate; Concretely, described nitrate is erbium nitrate, ferric nitrate, zinc nitrate according to mass ratio is 1 :2:0.2 mixed composition.

[0035] A dyeing method for three-dimensional dyeing of a zirconia ceramic crown, comprising the following steps:

[0036] S1. Configuration of the dyeing agent: using water as a solvent, add zirconia, erbium oxide and nitrate to the water in turn, stir until there are no particles, continue to add polyethylene glycol, glycerin and indicator, continue to stir until completely dissolved, and get oxidized Staining agent for three-dimensional staining of zirco...

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Abstract

The invention belongs to the technical field of ceramic teeth, and in particular relates to a dyeing agent and a dyeing method for three-dimensional dyeing of zirconia ceramic tooth crowns. The dyeing agent includes the following components by weight: 1000 parts of water, 30-60 parts of polyethylene glycol, 100-200 parts of glycerin, 20-100 parts of zirconia, 20-100 parts of erbium oxide, and 5-100 parts of nitrate parts, 1-6 parts of the indicator; the staining method includes the configuration of the staining agent, the initial spraying of the zirconia ceramic crown, the contrast spraying of the zirconia ceramic crown, and the completion of the staining of the zirconia ceramic crown. The dyeing agent can directly dye zirconia ceramic crowns, and the dyeing agent has good permeability and surface gloss; the dyeing method can shorten the processing time of zirconia ceramic crowns, reduce the production cost, and has high simulation degree and can be repaired by zirconia. Physical performance is good.

Description

technical field [0001] The invention belongs to the technical field of ceramic teeth, and in particular relates to a dyeing agent and a dyeing method for three-dimensional dyeing of zirconia ceramic tooth crowns. Background technique [0002] Orthodontics refers to the treatment process of correcting misaligned teeth, abnormal tooth shape, and abnormal tooth color through oral technical means. In principle, the existing orthodontic treatment is to meet the aesthetic needs while maintaining the complete structure of the dental tissue to the maximum extent. Porcelain veneer is a treatment method for orthodontic treatment. Due to its excellent aesthetic effect and mechanical properties, all-ceramic restorations are favored by doctors and patients. Among them, zirconia ceramics have attracted more attention due to their outstanding mechanical properties; however, due to their chalky color, their light transmittance is poor. , veneer porcelain must be added or stained. Due to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/87
CPCC04B41/87C04B41/009C04B41/5045C04B35/48C04B41/5042C04B41/5009C04B41/4543C04B41/4539C04B41/0081
Inventor 赵喆李鸣姜焱林
Owner 嘉兴饶稷科技有限公司
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