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Manufacturing method of porous bottom surface of zirconium oxide ceramic bracket

A technology of zirconia ceramics and manufacturing methods, applied in the direction of brackets, etc., can solve the problems of poor bonding force and low manufacturing cost, and achieve the effect of improving bonding force, low manufacturing cost, and good control effect

Active Publication Date: 2014-08-06
SHENZHEN UPCERA DENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the above-mentioned problems in the prior art, and provides a method for manufacturing the porous bottom surface of the zirconia ceramic bracket, which solves the problem of poor bonding between the bottom of the ceramic bracket and the orthodontic adhesive in the prior art. problem, at the same time, the manufacturing cost is lower, and the control effect on the adhesion is better

Method used

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  • Manufacturing method of porous bottom surface of zirconium oxide ceramic bracket

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The zirconia:silica was mixed and ball milled according to the mass ratio of 10:1 for 20 hours, and the particle size distribution range of coarse zirconia was 0.05-0.33mm. The solution was prepared with a mass percentage concentration of 0.04%, and 0.2ml of this solution was evenly coated Lay it on the bottom of the zirconia ceramic bracket, sinter the coated zirconia ceramic bracket at 1320℃ for 2 hours, the particle size after sintering is 2μm, respectively, with 3M Unitek Transbond XT light-curing adhesive, Bisco Ortho-one TM Self-curing adhesive, Hangzhou West Lake non-stirring enamel composite resin, and Tianjin Institute of Synthetic Materials Industry Adhesive for bonding, each made 5 bonding samples. After making the sample, place it in artificial saliva at 37°C for 24 hours. The universal serving machine was subjected to a shear test, and the test results are shown in Table 1.

[0012] The adhesion between the ceramic bracket and the tooth enamel obtained by the...

Embodiment 2

[0014] The zirconia:silica was mixed and ball milled for 10 hours according to the mass ratio of 10:1, the particle size distribution range of coarse zirconia was 0.05-0.33mm, and the solution was prepared with a mass percentage concentration of 0.04%, and the solution was 0.2ml uniform Coated on the bottom of the zirconia ceramic bracket, and sintered the coated zirconia ceramic bracket at 1320℃ for 2 hours, the particle size after sintering is 5 μm, respectively, with 3M Unitek Transbond XT light-curing adhesive, Bisco Ortho- one TM Self-curing adhesive, Hangzhou West Lake non-stirring enamel adhesive resin, Tianjin Institute of Synthetic Materials Industry Adhesive for bonding, each made 5 bonding samples. After making the sample, place it in artificial saliva at 37°C for 24 hours. The universal serving machine was subjected to a shear test, and the test results are shown in Table 2.

[0015] The adhesion between the ceramic bracket and the tooth enamel obtained by the above...

Embodiment 3

[0017] The zirconia:alumina:silica was mixed and ball milled according to the mass ratio of 10:0.1:1 for 20 hours. The particle size distribution range of coarse zirconia was 0.05-0.33mm, and the solution was formulated into a solution with a mass percentage concentration of 0.01%. Other steps The same as in Example 1.

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Abstract

The invention relates to a method for manufacturing the porous bottom surface of a zirconia ceramic bracket. Zirconia, alumina and silicon dioxide are mixed and ball-milled according to different ratio requirements, and a solution is prepared and coated on the bottom of the ceramic bracket to form a porous surface on the bracket surface. Surface, increase the friction coefficient of the bracket surface, make it more firmly bonded. The invention enhances the adhesive strength of the ceramic bracket, and can control the size of the coarse-grained zirconia powder, the size of the aperture, and the adhesive force, so that the adhesive strength of the bracket can be controlled within a certain range, reducing the The bracket is less likely to fall off due to external force, and it is easy to remove.

Description

technical field [0001] The invention relates to a method for processing the bottom surface of a ceramic bracket, in particular to a method for manufacturing a porous bottom surface of a zirconia ceramic bracket for improving the bonding strength between the bracket and tooth enamel, and belongs to the technical field of orthodontics. Background technique [0002] With the continuous improvement of people's living standards in our country, orthodontic treatment adapts to people's pursuit of beauty, and gradually enters the popularization stage in our country, so the aesthetic requirements for orthodontic appliances are also getting higher and higher. In 1986, ceramic brackets were introduced into the field of orthodontics for the first time. Since then, various types of ceramic brackets have been widely used clinically. [0003] The currently used ceramic brackets are mainly alumina ceramics and zirconia ceramics. Alumina ceramic brackets have translucent properties and good...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C7/16
Inventor 王鸿娟司文捷严庆云孟宪梓
Owner SHENZHEN UPCERA DENTAL TECH
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