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Coloring agent for three-dimensional dyeing of zirconia ceramic dental crown and coloring method

A technology of zirconia ceramics and dyeing method, 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 dyeing, and not easy to fall off Effect

Active Publication Date: 2020-10-02
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 staining agent for three-dimensional staining of zirconia ceramic crowns, comprising the following components in parts by weight: 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; the nitrate is one or more of erbium nitrate, iron nitrate, zinc nitrate; specifically, the nitrate is erbium nitrate, iron nitrate, zinc nitrate according to the mass ratio of 1 :1:0.2 mixed composition.

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

[0022] S1. Configuration of dyeing agent: use water as a solvent, add zirconia, erbium oxide, and nitrate to the water in sequence, stir until there are no particles, then continue to add polyethylene glycol, glycerin, and indicator, and continue stirring until completely dissolved to obtain oxidation. Stains for three-dimensional staining o...

Embodiment 2

[0027] A staining agent for three-dimensional staining of zirconia ceramic crowns, comprising the following components in parts by weight: 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 indicators; the nitrate is one or more of erbium nitrate, iron nitrate, zinc nitrate; specifically, the nitrate is erbium nitrate, iron nitrate, zinc nitrate according to the mass ratio of 1 :0.5:0.6 mixed composition.

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

[0029] S1. Configuration of dyeing agent: use water as a solvent, add zirconia, erbium oxide, and nitrate to the water in sequence, stir until there are no particles, then continue to add polyethylene glycol, glycerin, and indicator, and continue stirring until completely dissolved to obtain oxidation. Stains for three-dimensional stain...

Embodiment 3

[0034] A staining agent for three-dimensional staining of zirconia ceramic crowns, comprising the following components in parts 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 indicators; the nitrate is one or more of erbium nitrate, iron nitrate, zinc nitrate; specifically, the nitrate is erbium nitrate, iron nitrate, zinc nitrate according to the mass ratio of 1 :2:0.2 mixed composition.

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

[0036] S1. Configuration of dyeing agent: use water as a solvent, add zirconia, erbium oxide, and nitrate to the water in sequence, stir until there are no particles, then continue to add polyethylene glycol, glycerin, and indicator, and continue stirring until completely dissolved to obtain oxidation. Stains for three-dimensional stainin...

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PUM

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Abstract

The invention belongs to the technical field of ceramic teeth, and particularly relates to a coloring agent for three-dimensional coloring of a zirconia ceramic dental crown and a coloring method. Thecoloring agent is prepared from the following components in parts by weight: 1000 parts of water, 30 to 60 parts of polyethylene glycol, 100 to 200 parts of glycerol, 20 to 100 parts of zirconium oxide, 20 to 100 parts of erbium oxide, 5 to 100 parts of nitrate and 1 to 6 parts of an indicator. The method comprises the following steps: preparing the coloring agent, primarily spraying a zirconiumoxide ceramic dental crown, comparing and spraying the zirconium oxide ceramic dental crown, and finishing coloring of the zirconium oxide ceramic dental crown. The coloring agent can be used for directly coloring zirconium oxide ceramic dental crowns, and is good in permeability and surface gloss. According to the dyeing method, the processing time of the zirconia ceramic dental crown can be shortened, the manufacturing cost is reduced, the simulation degree is high, and the performance of the zirconia prosthesis 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 crowns. Background technique [0002] Orthodontics refers to the treatment process of correcting irregular tooth arrangement, abnormal tooth shape and abnormal tooth color through oral technology. In principle, the existing orthodontic treatment is to meet the aesthetic needs while maintaining the complete structure of the tooth tissue to the maximum extent. Porcelain veneers are a treatment method for orthodontics. Due to the excellent aesthetic effect and mechanical properties of all-ceramic restorations, they 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 and poor light transmission , it is necessary to add veneering porcelain or staining. Due t...

Claims

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Application Information

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Patent Type & Authority Applications(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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